https://www.tdenviro.com/news daily 0.75 2026-03-19 https://www.tdenviro.com/news/qapps monthly 0.5 2025-07-22 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/66757041-3afc-492f-ad05-ac73585a3a4d/Example+Problem+Scenarios+screenshot.png News - Quality Assurance Project Plans - The burden and the benefit. - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/epa-dms-guide monthly 0.5 2025-03-25 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/4f58df2d-fa1d-43ad-9741-91f26307ca2f/Screenshot+2024-07-02+at+2.14.05+PM.png News - Community Guide to Managing Air Quality Data - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/youth-developed-and-run-air-monitoring monthly 0.5 2024-12-27 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/0fee1181-38db-4fb6-815d-7d579c8f145d/20240511_093338+2.jpg News - Youth Developed and Run Air Monitoring - Make it stand out The DVSA youth team learns about air quality! https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/cf307071-4fef-40ef-8cfe-b93e7929fa07/IMG_7564+copy.jpg News - Youth Developed and Run Air Monitoring - Make it stand out The youth plan their handheld PM2.5 monitor walking routes. https://www.tdenviro.com/news/bootcamp-4 monthly 0.5 2024-11-21 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/a6e89a33-399b-4113-be2e-8c9022fef82a/IMG_2541+copy.jpg News - Community Air Quality Education! Bootcamp #4! - Make it stand out Bootcamp participants getting to know each other at a Welcome Dinner https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/504fd77e-1eb9-45d8-a6cf-ad2f6d8bfbe6/IMG_2546+copy.jpg News - Community Air Quality Education! Bootcamp #4! - Make it stand out Blowing bubbles to demonstrate how pollution moves through the air. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/7ffdb04d-804e-49f6-9778-d3449220ba28/IMG_4900.jpg News - Community Air Quality Education! Bootcamp #4! - Make it stand out Bootcamp attendees! https://www.tdenviro.com/news/community-based-air-quality-monitoring-framework monthly 0.5 2024-10-23 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/61b93c97-26d7-47f4-a75a-ec64f50bb4f8/Screenshot+2024-10-23+at+9.04.44+AM.png News - Community-Based Air Quality Monitoring Framework - The framework website The framework website https://www.tdenviro.com/news/aqearth monthly 0.5 2025-03-10 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/9e2a0557-c6c7-4200-b7de-ab04830ffe56/AQEarth+Map+PsychadellicSmaller.png News - AQEarth: Custom Community Air Quality Monitoring - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/980d3c43-d5bf-47d4-9146-0708d2304e82/IMG_7159.jpg News - AQEarth: Custom Community Air Quality Monitoring - Make it stand out Teachers in Fort Collins, CO learning to use handheld sensors https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/00a992ef-8ea9-4a43-8356-50931f3db79d/image.jpg News - AQEarth: Custom Community Air Quality Monitoring - Make it stand out Members of the AQEarth Atlanta team using mobile PAMs to measure hyper-local areas of their community. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1d2a33ae-e526-4f99-bdcb-ae64c5d93cd5/AQEarth_logo.png News - AQEarth: Custom Community Air Quality Monitoring - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/community-air-monitoring-fundamentals monthly 0.5 2024-07-11 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/8574f6fd-646e-4dde-80b8-bf4aa30ab8f5/community-webinars-banner-for-post.png News - Community Air Monitoring Fundamentals - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/290e221f-0705-4ca0-835a-7ee3a8b30fb2/Screenshot+2024-07-02+at+3.06.56+PM.png News - Community Air Monitoring Fundamentals - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/community-members-and-air-quality-experts-come-together-for-third-all-about-air-quality-bootcamp-in-fresno-california monthly 0.5 2024-06-17 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713452922919-QQKS40HQ4OG2K1ZVUDTE/IMG_7006.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713453356938-AIZOGJV6PD2J0B9IN7E7/IMG_7247.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713453360467-KR23KI5TY14SGI88KFHD/IMG_7069.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713453362757-EM8AFSO8IFCUX7F1YM1Y/IMG_7062.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713453367169-LKOO06DCFMDPSZ3APWYJ/IMG_7009.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713452928149-G6B431S7NJPLL2LEOLTL/IMG_7041.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713453375837-GWJGWVU5XBKWXC5Q2TX4/IMG_6968.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1713453378787-V2FUY1I4AVNYA3OCW2I6/IMG_6955.jpg News - Community Members and Air Quality Experts Come Together for Third All About Air Quality Bootcamp in Fresno, California https://www.tdenviro.com/news/airactions-pilot-with-medtronic-in-sonoma-county monthly 0.5 2025-09-05 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/a43ee313-d700-4bf0-9704-d19aeee67065/20240226_AirActionsCGHS.jpg News - AirActions Pilot with Medtronic in Sonoma County - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/yaqa monthly 0.5 2025-01-23 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/32526778-939f-48d9-83b5-fcf11c8a4da6/YAQA+Logos_Transparent.png News - Getting Teachers and Students Hands-On with Air Quality Tech and Education! - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/87245e64-3f23-4825-b96a-de69f91fe766/IMG_7855+copy.jpg News - Getting Teachers and Students Hands-On with Air Quality Tech and Education! - Make it stand out Lee Boyes on the TD Enviro team leads a teacher training https://www.tdenviro.com/news/aqdx-format monthly 0.5 2024-02-20 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/9a739b8b-e7dc-4722-8279-7164e1d05d36/AQDx+Figure+for+article.jpg News - Addressing Data Harmonization Needs through an Air Quality Data Exchange (AQDx) Format - Make it stand out Data exchange between organizations/systems through a common format that describes the data, its collection, and its quality. https://www.tdenviro.com/news/datamanagement-cleanairfund monthly 0.5 2024-01-04 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/fe88f4c2-4fd2-4bc7-97b3-3db9aecf3295/Screenshot+2023-10-30+at+11.33.28+AM.png News - What's the future of data management?  A needs assessment and blueprint help guide potential next steps. - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/bootcamp-oakland monthly 0.5 2024-06-17 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/b74c3929-a346-4035-9741-71583b1b6065/IMG_8634+copy.jpg News - Northern California Community Advocates Engage with Air Issues: All About Air Quality Bootcamp - Make it stand out Tim presenting to the Bootcamp attendees. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/64946346-f0ad-4436-a248-023617350f63/IMG_8647+copy.jpg News - Northern California Community Advocates Engage with Air Issues: All About Air Quality Bootcamp - Make it stand out Bootcamp participants experimenting with bubbles! https://www.tdenviro.com/news/aqearth-anchorage monthly 0.5 2026-03-19 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/82b66902-3a46-4309-98dc-9ff728283656/IMG_6594.jpg News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out An AQSync at a middle school in Anchorage https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/8977a5aa-22c5-4944-8f5e-095dde95ca39/IMG_6605.jpg News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out A PAM collocated at an Alaska DEC reference monitoring site https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/9d98a10a-9a86-4f12-b0e2-00621c9f6296/MuniAHD4c-01.png News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/d7f39955-c2e6-434a-a4c0-d5edd0e48cee/gb-logo.png News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/ee3be0ad-fb8e-41b5-b19d-d7ab97b9cad9/DEC_Logo_1.png News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/81c205a3-d0a1-44e6-98f1-5b72189d2798/2BTech_Logo-NoBackground.png News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/000d7b1f-e5f7-40df-ad91-5c8ac324b62d/Logo+A_full+color.png News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/b8af95e6-dc4a-4495-9392-fa19b063a9b7/montrose-logo.png News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/8ff4092e-8de8-4607-a3d5-0c03c775fef5/City-of-Denver-Logo-Transparent-Horizontal.png News - AQEarth Anchorage: Expanding Air Monitoring in Environmental Justice Areas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/aqearth-fort-collins monthly 0.5 2024-12-27 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/a0cff017-4d29-4d3b-aa45-c5dce0a6e7f2/AQSyncInstall_FoCo.jpg News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out The AQSync air monitoring instruments at Fort Collins High School https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/08b70765-d435-4be3-8086-d68761439a1d/20220811_082923.jpg News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out A PAM on a PSD school bus https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/4bee5df0-7208-4d7e-afbe-c02f16376bd8/IMG_7159.jpg News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out PSD Teachers learning about air quality and how to use the air sensors. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/7001d2d4-a03f-497f-aa2d-d46f6e775540/103706_city-of-fort-collins.jpg News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/2d28d7d9-c3af-4c47-98fd-05d873464df8/Poudre_School_District_Logo-194x300.png News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/81c205a3-d0a1-44e6-98f1-5b72189d2798/2BTech_Logo-NoBackground.png News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/000d7b1f-e5f7-40df-ad91-5c8ac324b62d/Logo+A_full+color.png News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/b8af95e6-dc4a-4495-9392-fa19b063a9b7/montrose-logo.png News - AQEarth Fort Collins: Elevating Community Air Quality Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/aqearth-west-atlanta monthly 0.5 2026-03-19 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/824de83c-d8bc-4e9d-a181-45b32caaacf4/20230916_111457.jpg News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Environmental Justice Bus Tour and Workshop attendees https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/87a832e3-78fc-48f1-8da5-b0a2fd3c2805/20230914_114539.jpg News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out The team setting up the AQSync cage https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/93ee1dd3-7f35-463e-84d2-e2b16a13b657/image.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out The West Atlanta team! https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/10dc97c8-42a3-48a9-820a-1b5987f452c9/CHARRS%7Emv2.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/4f41e2d6-ef25-46c5-9c8f-ac05d8774d46/EPD+Logo+Color.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/5d243bc3-2e38-4f3d-96cd-1771bf1e7d25/wawa_logo_color_final.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1f870996-a0a9-4d0b-86ca-ac9a74dbca4c/ENG_logo_Vertical_CW.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/81c205a3-d0a1-44e6-98f1-5b72189d2798/2BTech_Logo-NoBackground.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/000d7b1f-e5f7-40df-ad91-5c8ac324b62d/Logo+A_full+color.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/b8af95e6-dc4a-4495-9392-fa19b063a9b7/montrose-logo.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/8ff4092e-8de8-4607-a3d5-0c03c775fef5/City-of-Denver-Logo-Transparent-Horizontal.png News - AQEarth West Atlanta: Addressing Local Air Monitoring Needs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/all-about-air-quality-bootcamp monthly 0.5 2024-06-17 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/4a735f50-641a-4d1d-9e55-976be7b4afb5/IMG_6488+copy.jpg News - All About Air Quality Bootcamp: Communities Learning about their Air - Make it stand out Bootcamp participants at the Welcome Dinner https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/4e2eaa53-b3e4-48e6-9fee-d6c73dbad3e4/IMG_6494+copy.jpg News - All About Air Quality Bootcamp: Communities Learning about their Air - Make it stand out Bootcamp in session! https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/72078459-bfee-4a7e-a684-9cf9f0a61de8/96E8E3BD-722D-4948-A87C-713F63375274.jpg News - All About Air Quality Bootcamp: Communities Learning about their Air - Make it stand out All Bootcamp attendees! https://www.tdenviro.com/news/powerofplanning monthly 0.5 2023-10-11 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/61be2a0e-1cb3-4b79-a445-576f607ac6bd/IMG_4652.jpeg News - The Power of Planning: Unlocking the Success of Community Air Quality Monitoring - Make it stand out A planning session with the City of Denver Love My Air team. https://www.tdenviro.com/news/the-enhanced-air-sensor-guidebook monthly 0.5 2024-10-23 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/e5f270c8-b185-4dbe-b566-f8fa02a794c1/Enhanced+Air+Sensor+Guidebook_cover+image.jpeg News - The Enhanced Air Sensor Guidebook - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/27ff7d3b-5d1f-4374-8bcd-f809a349f362/Screen+Shot+2022-12-21+at+11.26.59+AM.png News - The Enhanced Air Sensor Guidebook - Make it stand out Five Steps Recommended for Planning Air Monitoring Projects Using Air Sensors (Source: EPA) https://www.tdenviro.com/news/startinganetwork monthly 0.5 2024-10-23 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1687989108885-W4H67636LTNRVWLCA6PQ/Screenshot+2023-06-28+at+1.32.38+PM.png News - Starting a monitoring network but not sure where to begin? Use our guide! https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1687989108970-ICI5Z77YDANE1TAK9H9Y/Screenshot+2023-06-28+at+1.32.48+PM.png News - Starting a monitoring network but not sure where to begin? Use our guide! https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1687989110246-YQCNGN7HE99R5KSHBDN8/Screenshot+2023-06-28+at+1.32.56+PM.png News - Starting a monitoring network but not sure where to begin? Use our guide! https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1687989110171-6B8X15DLXJH2499AOX7Y/Screenshot+2023-06-28+at+1.33.13+PM.png News - Starting a monitoring network but not sure where to begin? Use our guide! https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1687989111288-6YACW79EQUWLRBL69GME/Screenshot+2023-06-28+at+1.33.22+PM.png News - Starting a monitoring network but not sure where to begin? Use our guide! https://www.tdenviro.com/news/indore-building-healthy-cities monthly 0.5 2025-04-15 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/22f84f26-0bc3-4777-a84b-d20a49410aed/CAG%2BSensor2.JPG News - Community-Led Study on Air Quality in Indore, India – a USAID-Funded Building Healthy Cities Project - Make it stand out A Clean Air Guide with a community-based sensor. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/ff356c88-cb1c-4e76-8c47-51cf381d6393/AirQualityAwarenessWalk.png News - Community-Led Study on Air Quality in Indore, India – a USAID-Funded Building Healthy Cities Project - Make it stand out An Air Quality Awareness Walk put on by the CAGs. https://www.tdenviro.com/news/houston-mobile-monitoring-project monthly 0.5 2023-10-11 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/cb87635f-358c-42ce-a879-ae46d54cd9cf/IMG_5670.jpg News - Mobile Air Quality Monitoring in Houston, Texas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/890a1013-43c9-436f-9cdf-e7b3f839e603/IMG_5674.jpg News - Mobile Air Quality Monitoring in Houston, Texas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/7e2d98a4-25ba-4653-a78c-a742a42f8ee2/Houston+Mobile+2022-03-02+at+10.36.27+AM.png News - Mobile Air Quality Monitoring in Houston, Texas - Make it stand out A mobile map of PM data collected by a vehicle. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/00c829a3-3f3c-41b3-8b9c-b22965f3a4e3/CarTopper+open.png News - Mobile Air Quality Monitoring in Houston, Texas - Make it stand out An open mobile sensing unit. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/2df5aa7e-1706-4173-ad6f-a7c05f271f84/Screen+Shot+2022-07-11+at+8.37.11+AM.png News - Mobile Air Quality Monitoring in Houston, Texas - Make it stand out Delta PM values mapped on downtown Houston and the Buffalo Bayou area. https://www.tdenviro.com/news/wearing-an-air-sensor-for-a-week monthly 0.5 2023-11-20 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/74718486-7493-44bf-9c6f-15044e40e0f9/airbeam-buy-it-now.jpg News - Wearing an Air Sensor for a Week - Make it stand out Source: AirBeam https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/a005ad2c-5973-4d9f-97e3-ce1fcf267efa/Picture1.png News - Wearing an Air Sensor for a Week - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/ea56e394-5d8d-40b0-945c-59115792ef80/Screenshot+2023-11-20+at+8.28.17+AM.png News - Wearing an Air Sensor for a Week - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/introducing-aqearth monthly 0.5 2023-10-30 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/ac2bfca2-1362-4047-b587-ab25f82345e7/AQEarth+Linkedin.png News - Introducing AQEarth - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/air-sensors-can-work monthly 0.5 2024-10-23 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/dc5cecc2-1a9b-4078-9e9e-9cb042be1626/Infographic+-+TD+Environmental+Services+-+Air+Sensors+Can+WORK+copy.jpg News - Air Sensors Can WORK - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/bringing-fourth-wave-innovation-into-the-nations-4th-largest-city-with-mobile-air-monitoring monthly 0.5 2023-10-11 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/c150b185-54cd-47ff-aefc-f9407c52952b/houston-car.jpg News - Bringing Fourth Wave Innovation Into The Nation’s 4th Largest City With Mobile Air Monitoring - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/c26f2e0f-f21c-47c7-8659-ebf29e4ff19e/work-on-Mhat-1024x682.jpg News - Bringing Fourth Wave Innovation Into The Nation’s 4th Largest City With Mobile Air Monitoring - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/eb098dfc-5273-4cbd-b3c4-458d80bcefae/20180531_EDF-HHD+Air+Quality+Project_MDJ_192.jpg News - Bringing Fourth Wave Innovation Into The Nation’s 4th Largest City With Mobile Air Monitoring - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/rwzuxrdebcwaft367fzb2or9dvc6md monthly 0.5 2024-04-02 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/e84ffa60-06ba-45b4-9691-c1254ed2ed01/CoH-Car-1024x683.jpg News - Mobile Air Quality Monitoring System Using City Government Vehicles - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/2fabbf12-ceb1-4dbf-aaff-c115565a67ae/close-up-1024x683.jpg News - Mobile Air Quality Monitoring System Using City Government Vehicles - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/1xq6hrn0su6ktpgq4dujplaus1sl18 monthly 0.5 2023-12-18 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/f8ec9498-3cd0-419f-9252-e3860dbbf484/4-questions-when-buying-air-sensors+copy.jpg News - Which Sensor Should I Buy? - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/news/a-brief-history-of-air-quality-sensing monthly 0.5 2024-02-01 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/c348cc89-51ad-444c-bc4d-9bf7081ecae1/canary.jpeg News - A Brief History of Air Quality Sensing - Make it stand out 1800s to 1900s – Canaries save lives Canaries in coal mines provided advanced warning of toxic gases. These living, mobile, handheld sensors saved countless lives of miners by detecting high concentrations of carbon dioxide, carbon monoxide, and methane. These small birds played an important part of mining safety and retired from mining the mid-1980s. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/32aff8e1-963c-45a6-8f3e-2b2b1022068c/d84ff09e63df81e917397cb3d14496d2.jpg News - A Brief History of Air Quality Sensing - Make it stand out 1937 – Portable device for air sensing released Drager develops first portable tube for detecting carbon monoxide for the mining industry. Today, Drager tubes detect 100s of different gases. The tubes are glass vials filled with a chemical reagent that reacts to a specific chemical or family of chemicals. A sample of air drawn into the tube changes the tube’s color when the targeted chemical(s) are detected. The length of the color change typically indicates the measured concentration. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1f191c55-1338-45a4-9bd9-671b640e65d9/CommonSenseBadge.jpg News - A Brief History of Air Quality Sensing - Make it stand out 2008 – Air sensing pod used by communities CommonSense program by Intel Berkeley built a mobile sensing pod that measured pollutants using low-cost sensors. Researchers designed and deployed handheld monitors with citizens and on street sweepers in the San Francisco Bay area. There was a strong focus on user-centered design and work with community groups. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/78691088-e2d7-4102-ac1b-988c7975ca53/6a7bb0023584f3957f1b829fcab1538f.jpg News - A Brief History of Air Quality Sensing - Make it stand out 2011 – Crowdsourced radiation data makes an impact Safecast started in response to the meltdown of the Fukushima Daiichi Nuclear Power Plant in Japan. Where a group of volunteers quickly began monitoring, collecting, and openly sharing information on environmental radiation. This voluntary effort quickly grew to participants and geographic coverage and provided valuable and actionable information. Safecast’s approach of open data, devoted volunteer network, quality measurements, and agile development have helped it to continue to flourish today and to expand to other pollutants and areas. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/55235b5b-cea5-4080-a6b6-6c2946305419/8e844a24ebe35e8a3f1f4f1cb903f2ef.png News - A Brief History of Air Quality Sensing - Make it stand out 2013 – EPA determines accuracy of air sensors U.S EPA starts the first independent evaluation of seven low-cost air quality sensors in their laboratories in Research Triangle Park, NC. Results of the assessments are published and shed light on the performance of these devices. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/684db810-9b67-46a4-8938-a38a5c41ada9/f18bd52444fe2919f841379473cdf637.png News - A Brief History of Air Quality Sensing - Make it stand out 2013 – Good advice and tips provided by U.S. EPA U.S. EPA releases the Air Sensor Guidebook – a practical guide to using air sensors for air quality monitoring. The guidebook provides practical information on types of pollutants, what to consider when buying air sensors, steps to collect useful data, how to assess performance, and more. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/adf2a318-079a-4a90-842b-1c332f94cc89/fce99174b4fbfb448fe5ae252bb1133c.png News - A Brief History of Air Quality Sensing - Make it stand out 2014 – Open source PM sensor system launches AirBeam, an open source air sensor system, was released by HabitatMap for personal monitoring for PM2.5. Users crowdsource data on the AirCasting app and website to vividly show a region’s particle levels. As of June 2017, over 1000 air beams are in use around the world. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/9ccb8322-bfc1-4dd2-8ddc-59a472f127a1/7257983566ebb3d746a65585f0fd331e.png News - A Brief History of Air Quality Sensing - Make it stand out 2015 – 2016 – Startup and more startups At a pace of almost one new company per week, startups seek to develop air quality sensor for the consumer market. You can buy air sensor systems for around $200 on Amazon. Many devices look beautiful with flashy apps, videos, and websites. While many of them look interesting, the accuracy and quality of the data often remains elusive. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/451b9af5-65cf-4094-b5e6-0c5cd00d976d/standards-768x575.png News - A Brief History of Air Quality Sensing - Make it stand out 2018 – Increasing focus on quality Performance standards are being considered by the U.S. EPA to help provide clarity in a confused marketplace. China publishes their performance standards for particle and gas sensor systems that include laboratory and field evaluations. The EU is developing technical specifications for performance requirements and testing methods for low-cost gas sensors. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/e576a7e6-6925-45a4-b4c5-5e140464acc2/los-angeles-1790986_1280.jpg News - A Brief History of Air Quality Sensing - Make it stand out 2020 – Air pollution and COVID-19 reveals more inequity and importance of air quality The worldwide pandemic, COVID-19, vividly revealed a number of air quality problems such as greater impacts among economically and environmentally disadvantaged communities. In addition, the economic shut down throughout the world revealed that air pollution can be improved by reducing the sources of emissions. Air sensors, both indoor and outdoor, are revealing the importance of understanding local air quality and the freshness of air inside buildings and outside where people are congregating, dining, socializing. The growth of the air sensor market will certainly increase as more people and organizations begin to consider the quality and the freshness of the air around them. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/3bb6020b-7089-4df2-a65f-0a769c3807f9/11a88afc38811136de9905f4fd414ad7.png News - A Brief History of Air Quality Sensing - Make it stand out 1974 – First PID for continuous sensing Photoionization detector (PID) introduced as a hand-held instrument to detect leaks for Volatile Organic Compounds (VOCs). First introduced in 1974, early portable PIDs were bulky, heavy (9 lbs.), and had a separate hand-held probe and a controller carried by a shoulder strap. Today, with advances in electronics, batteries, and detectors, these devices are now small, portable and used widely in industrial hygiene applications. More about PIDs. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/d333396c-5401-4ea5-b228-cc1fddc9a536/5606c67683115183443f902cba6e1994.jpg News - A Brief History of Air Quality Sensing - Make it stand out 2006 – AIR project explores participatory sensing Preemptive Media (a group of artists, activists, and technologists) created AIR – a portable air monitoring device that enabled people to find pollution hotspots in their neighborhood and urban environments. Equipped with GPS, digital compass, air sensors, and a digital display, participants carried the devices and view local readings on its display. The AIR devices regularly transmitted data to a website for real-time data visualization. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/5602700c-7a61-40d7-9300-ff7150a84c4a/90faa9d1948920d208df9639a906ea68.png News - A Brief History of Air Quality Sensing - Make it stand out 2012 – Low-cost sensor created by crowdfunding Air Quality Egg funded via Kickstarter. Led by Pachube and Wicked Devices, over 900 people funded this project the produced 800 air quality sensing eggs. The eggs measured carbon monoxide, nitrogen dioxide, temperature, and humidity using low-cost sensors. This project created tremendous buzz, but the poor accuracy of the eggs frustrated and soured most users. 2012 – First U.S. meeting for low-cost air quality sensing The U.S. EPA host the first comprehensive meeting, the Air Sensors for Air Pollution (ASAP) Workshop, on air quality sensors. This gathering brought together early industry leaders and linked community groups, researchers, industry, and regulators. The workshop helped set a path for EPA’s low-cost air sensor program. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/0d746da1-d928-45a4-a8f5-cdf185251007/038a1548d883fd654d482c44dea9f946.png News - A Brief History of Air Quality Sensing - Make it stand out 2014 Game changing evaluation center launches The South Coast Air Quality Management District in Los Angeles sets up a comprehensive evaluation center for air sensors. Called the Air Quality Sensor Performance Evaluation Center (AQ-SPEC) it evaluates the accuracy and usability of commercially available, low-cost air quality sensors. They quickly publish the results on a public website. As of May 2017, the AQ-SPEC program evaluated 29 sensor systems. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/93060a1d-fd0f-4326-a193-b6b5f6d0030a/4cf4c8a82a1735fcd85e9bd60691d919.png News - A Brief History of Air Quality Sensing - Make it stand out 2015 – U.S. EPA completes a 1-year field evaluation of air quality sensor systems. Sensors measuring oxides of nitrogen, ozone, carbon monoxide, sulfur dioxide, and particles revealed highly variable performance when compared to a reference monitor. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/ec0bb4f3-94d8-41fe-b7c6-09488c2b9c84/77ba58fa804ff21af6b055ee9751612c.png News - A Brief History of Air Quality Sensing - Make it stand out 2016 – A dense city network starts deployment Array of Things begins deployment of 500 air quality sensor systems in Chicago. Led by Argonne National Laboratory and the University of Chicago, this NSF-funded project seeks to deploy a high-density network to monitor gaseous and particulate pollution. 2016 – 4-yr EU air sensor project engages citizens CITI-SENSE (an EU project) finishes its air to develop tools is to involve citizens in assessments of air and environmental quality to empower them to participate in environmental governance. CITI-SENSE focused on conducting research, developing tools, evaluating air sensors, determine perceptions about air quality, and deploying over 300 air sensors in participating cities. It involved citizens in nine EU countries, required the agreement of many nation states on the technology, and included a large number of technology manufacturers. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/3496a363-b147-419e-b739-1a807416a45f/49c38fdde6f7a9f09cd0ff8fd931dc55.png News - A Brief History of Air Quality Sensing - Make it stand out 2017 – Government proposes role for citizen science Citizen science bills proposed in the U.S. House of Representative and the California Assembly Bill. A government interested in citizen science provides a pathway for air sensors to affect science and public policy. As stated in the California Bill: “The California Legislature finds and declares all of the following: Section 1, (b) Citizen science projects utilizing community monitoring with low-cost sensor technology will complement and enhance data collection for public health and environmental management goals.” https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/dfc996c6-6a1b-48d9-8a3a-b4937de3cdb3/wxu-768x499.png News - A Brief History of Air Quality Sensing - Make it stand out 2018 – Weather company embraces air quality sensors Weather Underground enables owners of PurpleAir sensors to contribute their data to Weather Underground, which will display sensor readings and maps on its website to provide high-resolution weather and air quality information https://www.tdenviro.com/news/a-breath-of-fresh-air-a-roadmap-for-investing-in-air-sensors monthly 0.5 2024-07-22 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/f83d64b3-93ad-41b8-a5cb-10a2a1d38022/Screen+Shot+2022-03-22+at+11.43.51+AM.jpg News - 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About TD Enviro In-depth experience: Over 30 years of experience helps create tailored solutions to your complex problems. Innovative Solutions: Embracing new technology, yet grounded in science and experience, providing you with a custom solution. Creativity & Teamwork: Proven ability to engage with teams of all kinds to address environmental challenges with ingenuity. https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/a1243cb7-6584-49d0-8ca1-860003a430eb/41631410441_da4ae23209_k+copy.jpg About - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.tdenviro.com/contact-us daily 0.75 2025-03-04 https://www.tdenviro.com/services daily 0.75 2026-02-02 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/8d315614-9e5b-4b68-91ab-9fc70809a423/central-park-2178286.jpg Services - We Can Help Our services are tailored to your needs and can help you effectively address air quality challenges. With decades of experience, our team can help you with evaluating technology, deploying sensors, managing data, performing in-depth analytics, assessing community and organization air quality needs, and developing clear and accurate messaging. https://www.tdenviro.com/airactions daily 0.75 2024-12-19 https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/81875d84-16f5-4a5a-89f6-ab608971b1e3/AirActionsLogo.png https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/5b02c8a3-84ae-4697-bed5-46b77155f645/4R5A9714-8.JPG https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1734632621215-3UNKQB5RG9WPEEOF7T79/unsplash-image-QnY0lML_jHw.jpg https://images.squarespace-cdn.com/content/v1/6201b472e139cf151ad45689/1734632597089-PHZFU033WC73MJW9F9D3/unsplash-image-hes6nUC1MVc.jpg