Air Pollution Environmental Protection Regulations 
Legal Planet
AUGUST 22, 2023
States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.
Union of Concerned Scientists
SEPTEMBER 30, 2024
When we breathe the air or drink the water, we’re taking in any potential contaminants all at once—with effects that can combine or even compound. Cumulative impact assessments look at health, environmental, and social factors (stressors and burdens) to help officials make better environmental decisions.
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Environmental News Bits
FEBRUARY 22, 2024
The Supreme Court heard arguments on the Environmental Protection Agency’s (EPA) interstate air pollution rule Wednesday, with members of the court’s liberal minority expressing skepticism about the appropriateness of hearing the case but the conservative majority seeming amenable to blocking the rule.
Union of Concerned Scientists
APRIL 21, 2023
The US Environmental Protection Agency (EPA) is charged with the Herculean and crucial task of assessing which chemicals are innocuous and which ones need to be banned or restricted because they pose a threat to our health or the environment. Fortunately, EPA has begun a slow pivot toward assessing multiple chemicals at once.
PA Environment Daily
MAY 11, 2023
May 11, the Environmental Integrity Project and Clean Air Council filed a federal lawsuit against the Shell Petrochemical Plant for repeatedly violating permitted air pollution limits from a massive new plastics production plant in Beaver County, which opened last year. In a lawsuit filed in the U.S.
PA Environment Daily
OCTOBER 8, 2024
Environmental Protection Agency announced the federal government has settled its final federal Clean Air Act (CAA) claim against Philadelphia Energy Solutions Refining and Marketing, LLC pertaining to the June 21, 2019 fire and explosion at its former South Philadelphia refinery. On October 8, the U.S.
Environmental News Bits
SEPTEMBER 22, 2023
A citizens’ group in West Virginia is suing the Environmental Protection Agency, alleging that federal regulators have failed to protect a majority-Black community in the state and residents of parts of Louisiana and Texas from cancer-causing chemicals. Read the full story from ProPublica.
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