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By appropriate assumption and simplification, the law of the movement and dispersion with water and the attenuation and transformation of pollutants in rivers is described, with mathematical models given respectively, based on which, the one-dimensional mathematical equation of pollutants in rivers is obtained, the turbulence self-purification model of pollutants in rivers is discussed, and finally...
This paper applied the health risk assessment model recommended by the American Environmental Protection Bureau (EPA) , calculation the health risk and analysis the test index about As, Hg, Cr6+, Pb, Cd, F in Ya'an rural drinking water. The result indicates that the average concentration of the pollutants are respectively as follows: As: 0.004 mg/l, Hg: 0.001 mg/1, Cr6+: 0.005-0.015 mg/l, Pb: 0.01...
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