Environmental Science

SEPTEMBER 7, 2018

Greenhouse gas : A group of gases known to be responsible for increasing the “greenhouse effect” - that is, gases that absorb infrared radiation and increase atmospheric density. Ozone layer : A protective layer of gas in the upper atmosphere that absorbs the sun's must harmful radiation.

Government 52

Government Law Waste Clean Air Act 52

Environmental Science

JULY 30, 2018

There are 90 MCLs, including for specific chemicals, microbes, and properties such as radiation. Water reuse involves recycling wastewater for beneficial use - for example, watering your lawn with your washing machine water. We are also trying to recycle wastewater sludges for fertilizer, but there are similar issues.

Clean Water Act 52

Clean Water Act Waste Clean Air Act Regulations 52

Arnold Porter

DECEMBER 3, 2021

Key actions in other program offices included establishment of national drinking water standards for PFOA and PFOS and leveraging National Pollutant Discharge Elimination System permitting to reduce PFAS discharges to waterways (Office of Water); proposed designation of PFOA and PFOS as hazardous substances under the Comprehensive Environmental Response, (..)

2021 52

2021 Toxic Substances Control Act 2020 2022 52