EPA Air Quality System on new websites

1. EPA Air Quality System did not appear on any new site in the last 30 days.^[1]

The line is the 7-day average share of new sites that use EPA Air Quality System, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	LocalLogic	0.1%	22.8%
2	▼1	The Movie Database	<0.1%	6.7%
3	▲1	Daum Postcode	<0.1%	5.4%
4	▼1	ViaCEP	<0.1%	3.6%
5	▼1	Frankfurter	<0.1%	3.3%
6	▲2	Walk Score	<0.1%	2.8%
7	▼2	Dimensions	<0.1%	1.9%
8	▼2	Open Food Facts	<0.1%	1.9%
9	▼1	Postcodes.io	<0.1%	1.7%
10	▲10	NASA Open Data	<0.1%	1.7%
11	▼3	BigDataCloud	<0.1%	1.5%
12	▲7	Wikidata	<0.1%	1.5%
…
1043		EPA Air Quality System	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Data API tool. All 1525 in Data API

1 of the 1 sites using EPA Air Quality System are product launches we list individually.

Site	Found	Also detected
Settle Down Atlas: Where will your next chapter be? settledownatlas.com	Jul 30

1. These figures cover websites that went live since April 2026, not the web as a whole.