Retention and Leaching of Pb, Cu, Cd and Zn in Soil Close to Large Source of PollutionThe importance of the soil as a geochemical barrier and accumulator of heavy metals has been indicated by the concentration gradient of the distribution of Pb, Cu, Cd and Zn in the soil profile, and ...
Landfills not included, the production of packaging material itself is a major source of air and water pollution.People are now trying to solve the problems caused by packaging material. In1991, Germany took the lead by requiring companies to recycle the packaging used for their goods. To do ...
根据第一段“You might not expect it, but cows are a large source of the greenhouse gases that are driving climate change. Now scientists have shown the pollution from cows can be reduced by adding a little seaweed to their food.(你可能想不到,奶牛是导致气候变化的温室气体的主要来源。现在,...
"Since this source of NOx can remain local, largely in rural farming communities, we need to develop a kind of 'catalytic converter' for soils and farms," said senior author Houlton, a professor with the UC Davis Department of Land, Air and Water Resources, and director of the John Muir...
Ministry of ecological environment: mobile source pollution has become an important source of air pollution in large and medium-sized cities
Source Data Extended Data Fig. 4 29Si MAS NMR spectroscopy. 29Si MAS NMR spectra of ZEO-5 (from bottom): Experimental, DFT-simulated and individual components (see SM). The DFT study confirms that the very low field signal at −98 ppm corresponds to the Si sites in the central 4-rin...
阅读理解You might not expect it, but cows are a large source of the greenhouse gases that are driving climate change. Cows can eat grass and one of their stomach sections has a special chemical that helps break down the grass. In this process,lots of methane (CH_{4}), a dangerous gree...
You might not expect it,but cows are a large source of the greenhouse gases that are driving climate change.Cows produce lots of methane(甲烷)by breaking down the grass.Now scientists have shown that the pollution from cows can be reduced by adding a little seaweed to their food. Scientists...
Crossing this estimate with the official value of statistical life in France, our central scenario approximates at 0.114 euro/vkm the excess external cost of the local pollution emitted by freight vehicles as compared to cars.This is a preview of subscription content, log in via an institution ...
R. Particle formation in the upper tropical troposphere—a source of nuclei for the stratospheric aerosol. Science 270, 1650–1653 (1995). ADS CAS Google Scholar Clarke, A. D. et al. Nucleation in the equatorial free troposphere: favorable environments during PEM-Tropics. J. Geophys. Res. ...