NH is one of the main odors produced from landfill sites. It is also an important precursor of PM. According to the NH of ambient air and non-organizational waste gas monitoring method, the research studied NH emission characteristics of two landfill sites in Beijing. The results showed that the NH concentrations in waste pit, sludge treatment workshop and leachate equalization basin were 0.078-0.341mg·m. The NH concentration of key processes was rising in daytime and decreasing in night. Temperature and relative humidity were main meteorological influencing factors, and NH concentration was low in rainy weather. The NH concentration declined significantly along downwind directions, by 60.00% at 100m out of boundary and 69.90% at 300 m. This reasearch provides scientific support for further study on localization of NH emission characteristics and NH emission monitoring management.
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| http://dx.doi.org/10.13227/j.hjkx.201603121 | DOI Listing |
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