Sentences with phrase «from urban runoff»
Experts say careful planning of developments, homes and buildings can alleviate nearly all the contamination from urban runoff.
https://www.scientificamerican.com/ Not exact matches
While water utilities across the country spend more than $ 50 billion a year to treat drinking water, the nation spends $ 207 million a year to protect source waters and prevent pollution from sources such as urban runoff, the study says.
Agricultural runoff enriches the water further, as do the organic contributions from urban effluent, including that from Chicago's sewage system.
Dams; rising temperatures and carbon dioxide concentrations; droughts; and increased runoff of nutrients from urban and agricultural lands are all compounding the problem.
In contrast, the insecticide sensitivities of H. azteca collected from undeveloped sites beyond the influences of agricultural / urban runoff were similar to those of lab - grown populations.
Investigators have found that H. azteca collected from sites influenced by agricultural / urban runoff are as much as 2 - times less sensitive to pyrethroid insecticides than lab - grown H. azteca.
Green roofs, green streets, rainwater gardens, and bioswales can absorb storm water runoff, while also cooling city blocks suffering from the urban heat - island effect during hot summers.
The Board of Public Works Commissioner Paula Daniels, who initially drafted the ordinance last July, explained that the new requirements would prevent over 104 million gallons of polluted urban runoff from ending up in the ocean.»
Recent research has shown that coral reefs are significantly suffering from the impacts of climate change, the acidification of oceans, poor fisheries management and pollution from urban and agricultural runoff which encourages over-running of the reefs by algae and the bleaching of the reefs themselves.
Sources of nitrogen that affect waterways include agricultural, urban and residential runoff, and especially inadequately managed wastewater from either sewage or septic systems.
The water quality at our beaches is threatened by pollution from urban and agricultural runoff, sewage spills and overflows, and waste discharged into the ocean by industry, sewage treatment plants and power plants.
The average relative humidity in cities is usually several percent lower than that of adjacent rural areas, primarily because of increased runoff of precipitation and the lack of evapotranspiration from vegetation in urban areas.
Furthermore, less of this energy can be used for evaporation in urban areas, which characteristically exhibit greater precipitation runoff from streets and buildings.
Thirdly, urban agriculture and urban forestry contribute to disaster risk reduction and adaptation to climate change by reducing runoff, keeping flood plains free from construction, reducing urban temperatures, capturing dust and CO2, while growing fresh food close to consumers reduces energy spent in transport, cooling, processing and packaging, whilst productive reuse of urban organic wastes and wastewater (and the nutrients these contain) reduces methane emissions from landfills and energy use in fertilizer production.
http://www.epa.gov/salish-sea/shellfish-harvesting Nearly 183,000 acres (739 square kilometres) of shellfish beds are currently closed to harvesting in the Georgia Basin, and about 36,000 acres (147 square kilometres) are closed in Puget Sound... The primary sources of pollution that lead to closure of shellfish harvesting areas are polluted runoff from urban areas and farms, and uncontrolled sources of sewage and septic wastes.
Polluted runoff from both rural and urban lands increases erosion and puts public health at risk by contaminating drinking water supplies.
A breakwater built in the 1940s to protect the Long Beach port «traps urban runoff, making the city's water quality among the poorest in the state» and exhaust from the many vehicles operating, and idling, in the harbor area hangs over nearby communities.