The Trump administration invited companies to email the Environmental Protection Agency to seek presidential exemptions from ...
The Valley has seen decades of big business deals and population growth. A yearslong fight over air pollution could now ...
Researchers previously assumed that organic aerosols form through a single oxidation step. Natural precursor gases such as terpenes and isoprene – hydrocarbons emitted by plants – quickly add oxygen ...
President Trump's EPA administrator aims to roll back environmental protections in an effort to reduce the agency's spending.
The EPA's decision on the Valley's ozone nonattainment issue could have big impacts on public health and the local economy.
The agency is taking requests from companies wanting to shed emission restrictions for mercury and other toxic substances.
A recent University of Utah study found that the U.S. Environmental Protection Agency is not adequately measuring air ...
During a wildfire, residual smoke distributes on the breeze, infiltrating homes, schools and offices. To help people protect ...
"Indoor environments with poor air quality such as elevated CO₂ levels, particulate matter (PM2.5) and VOCs can reduce the ...