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Published on: August 2, 2024
[NH3 Emission Characteristics in Landfill Sites in Beijing]
Tong Cui1,2, Jin-Xiang Li1,2, Yan-Yan Yang1,2
1Beijing Municipal Environmental Monitoring Center, Beijing 100048, China.
Abstract:
NH3 is one of the main odors produced from landfill sites. It is also an important precursor of PM2.5. According to the NH3 of ambient air and non-organizational waste gas monitoring method, the research studied NH3 emission characteristics of two landfill sites in Beijing. The results showed that the NH3 concentrations in waste pit, sludge treatment workshop and leachate equalization basin were 0.078-0.341mg·m-3. The NH3 concentration of key processes was rising in daytime and decreasing in night. Temperature and relative humidity were main meteorological influencing factors, and NH3 concentration was low in rainy weather. The NH3 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 NH3 emission characteristics and NH3 emission monitoring management.
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