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Environmental Sciences Europe

Table 3 P-values of pre-shutdown and pre-rollback PM2.5 values for treatment–control counties (two-sided paired t-test)

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

Frequency

Treatment–control pair

Contra Costa–Sacramento

Napa–Sutter

Weekly

0.003271

0.7945

Daily

2.60E-07

0.621

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