Imported from China, the blenders use uncertified small off-road engines that can produce excess smog-forming emissions.
Company's backflow preventers now meet California's lead content rules, which go into effect Jan. 1.
The institute will evaluate the performance of fine mesh screens at Kansas City Power & Light's Hawthorn Station, which discharges water to the Missouri River.
Agency stresses that the field of contaminant candidates was narrowed down with the help of input from stakeholders, the National Research Council, and the National Drinking Water Advisory Council.
Company changes to Standard Method 6040D and V210 should make results more precise and timely.
The American Society of Heating, Refrigerating and Air-Conditioning Engineers wants to strengthen the requirements for natural ventilation in high-rise residential buildings.
Research shows a small increase in stratospheric ozone after the restrictions of the Montreal Protocol were established.
Researchers tested taxi drivers before, during, and after the 2008 Beijing Olympics for their heart rate variability in response to varying levels of particulate matter pollution.
Association says company is committed to the environment and recycling of products.
Company expects to have plenty of water for the future.
The city failed to meet effluent limits for ammonia and nitrogen.
Next year's conferences will be co-located in Nashville, Tenn.
Temperature and photosynthetic active radiation are the most important variables in determining what future forests might look like, according to the study.
The list features cities in Colorado, Georgia, Maine, Massachusetts, New York, Oregon, Washington, and Wisconsin.
CH2M Hill employee and facility design win honors at annual WateReuse symposium.
Two non-utility and three utility green power suppliers were recognized at the Renewable Energy Markets Conference.
EPA Administrator Lisa Jackson signed the Final Mandatory Reporting of Greenhouse Gases Rule yesterday.
A baffled bioreactor uses baffles to create an intermediate settling chamber for sludge return and to treat water to a level suitable for use in toilet flushing and car washing.