article thumbnail

EPA grants waivers for California’s on-highway heavy-duty vehicle and engine emission standards

Green Car Congress

The US Environmental Protection Agency (EPA) is granting two waivers of preemption regarding four California Air Resource Board (CARB) regulations related to California’s heavy-duty vehicle and engine emission standards. CARB has asked EPA for additional time before the Agency acts on the waiver request for this regulation.

EPA 210
article thumbnail

EPA finalizes greenhouse gas standards for LDVs MY 2023-2026

Green Car Congress

The Environmental Protection Agency (EPA) is finalizing the federal greenhouse gas (GHG) emissions standards for passenger cars and light trucks for Model Years (MY) 2023 through 2026. EPA is planning to initiate a separate rulemaking to establish multi-pollutant emission standards under the Clean Air Act for MY 2027 and later.

EPA 243
article thumbnail

EPA, NHTSA issue One National Program Rule; EPA withdraws CA waiver for GHG and fuel economy

Green Car Congress

The action finalizes parts of the SAFE Vehicles Rule that was first proposed on 2 August 2018. For its part, EPA is withdrawing the Clean Air Act preemption waiver it granted to the State of California in January 2013 as it relates to California’s GHG and ZEV programs. criteria pollutants—is not affected by the action.

article thumbnail

Study finds US air pollution deaths nearly halved between 1990 and 2010

Green Car Congress

A new study led by researchers at the University of North Carolina at Chapel Hill has found that deaths related to air pollution in the US were nearly halved between 1990 and 2010. This study demonstrates that those changes have had a real impact with fewer people dying each year due to exposure to outdoor air pollution. Hogrefe, C.,

Pollution 265
article thumbnail

EPA proposes retaining current NAAQS for particulate matter

Green Car Congress

The US Environmental Protection Agency (EPA) is proposing to retain, without changes, the National Ambient Air Quality Standards (NAAQS) for particulate matter (PM) including both fine particles (PM 2.5 ) and coarse particles (PM 10 ). EPA sets both an annual and a 24-hour standard for fine particles (PM 2.5 ). Average PM 2.5

EPA 186
article thumbnail

PM2.5, O3 pollution associated with development of Alzheimer’s disease; new study identifies evolving axonal damage

Green Car Congress

suggesting long-term exposure to PM 2.5 , as well as ozone above the current US EPA standards, are associated with increased risk of Alzheimer’s disease. Metropolitan Mexico City (MMC) is an example of extreme urban growth and serious environmental pollution; millions of children are involuntarily exposed to harmful concentrations of PM 2.5

Pollution 318
article thumbnail

Study links PM2.5 pollution to increased risk of diabetes; even low levels pose risk

Green Car Congress

pollution—even at levels deemed safe—to an increased risk of diabetes globally. The main drivers of diabetes include eating an unhealthy diet, having a sedentary lifestyle, and obesity, but the new research indicates the extent to which outdoor air pollution plays a role. Louis Health Care System links PM 2.5 million U.S.

Pollution 252