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Environmental Sciences Europe

Table 4 p values of pre- and post-shutdown and rollback PM2.5 levels (two-sided unpaired t-test)

From: Association of temporary Environmental Protection Agency regulation suspension with industrial economic viability and local air quality in California, United States

Frequency

County

Contra Costa

Sacramento

Napa

Sutter

Weekly

0.3349

0.003492

0.1401

0.7499

Daily

0.1459

1.48E-08

0.01304

0.7815

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