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University of California, Davis researchers will receive $2.8 These environmental impacts are not fully documented, according to Tom Tomich, director of the Agricultural Sustainability Institute at UC Davis. million in new grants to study the use and impacts of escaped nitrogen from agricultural production.
Illustration of projected ozone changes in the South Coast region due to climate change in 2050. Areas in orange and red could see ozone concentrations elevated by 9 to 18 parts per billion. Kleeman of UC Davis, lead author. Click to enlarge. Nichols, ARB chairman.
Exposure to ozone at levels currently deemed safe by the NAAQS clean air standards can have a significant and negative effect on lung function, according to researchers at the University of California, Davis. Edward Schelegle, University of California, Davis. Earlier post.). Specifically, we found that 6.6
W/m 2 before 2100 without overshoot by employment of a range of technologies and strategies for reducing greenhouse gas emissions.). We find that, assuming pollution emissions and population are held constant at current levels, climate change would adversely affect future air quality for >85% of China’s population (?55% (The RCP 4.5
Dust, ozone and carbon can accumulate in valleys and basins in California and other Western states. —Steve Davis, UC Irvine Earth system scientist and co-author. China Emissions Manufacturing' The product doesn’t contain the pollution, but creating it caused the pollution. Click to enlarge. —Lin et al.
As California continues to reduce local sources of ozone, ozone entering the state from the Pacific makes up a larger fraction of measured ozone levels. An ozonesonde is a balloon which measures ozone from the surface to more than 10 kilometers above the ground.
They found that reductions in ground ozone during this 35-year period resulted in $600 million in increased production annually by the early 2010s. Davis and his colleagues chose to concentrate on perennials because of the long-term investment they represent and the fact that California is a major supplier of this type of produce.
Consumer products such as shampoo, cleaning products and paint now contribute as much to emitted volatile organic compounds (VOCs) in cities as tailpipe emissions from vehicles, according to a new study led by NOAA. Total VOC emission factors for end uses of petrochemical sources in the study. McDonald et al. Click to enlarge.
A study led by researchers at UC Berkeley has found that diesel exhaust forms about seven times more secondary organic aerosols (SOA) than gasoline exhaust for the same mass of unburned fuel emissions and, given emission factors, can be expected to form 15 times more SOA than gasoline per liter of fuel burned.
Black carbon is part of a group of pollution sources known as Short-Lived Climate Forcers (SLCFs), including methane gas and ozone, which are produced on earth. Cappa, a professor of engineering at the University of California, Davis, and Timothy B. Earlier post.). Led by principal investigators Christopher D.
The UC Davis/California Institute of Technology (UCD/CIT) Source Oriented Chemical Transport Model was used to output daily POA (primary organic aerosols) and SOA (secondary organic aerosols) at a 4x4 km resolution. and ozone in warm months, and with PM 2.5 , carbon monoxide, nitrogen dioxide and oxides of nitrogen in the cool season.
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