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冯新斌, Shaofeng
Atmospheric Environment 41 (2007) 5584-5594,-0001,():
-1年11月30日
To investigate the characteristics of mercury exchange between soil and air in the heavily air-polluted area, total gaseous mercury (TGM) concentration in air and Hg exchange flux were measured in Wanshan Hg mining area (WMMA) in November, 2002 and July–August, 2004. The results showed that the average TGM concentrations in the ambient air (17.8–1101.8 ngm3), average Hg emission flux (162–27827 ngm2 h1) and average Hg dry deposition flux (0–9434 ngm2 h1) in WMMA were 1–4 orders of magnitude higher than those in the background area. It is said that mercury-enriched soil is a significant Hg source of the atmosphere in WMMA. It was also found that widely distributed roasted cinnabar banks are net Hg sources of the atmosphere in WMMA. Relationships between mercury exchange flux and environmental parameters were investigated. The results indicated that the rate of mercury emission from soil could be accelerated by high total soil mercury concentration and solar irradiation. Whereas, highly elevated TGM concentrations in the ambient air can restrain Hg emission from soil and even lead to strongly atmospheric Hg deposition to soil surface. A great amount of gaseous mercury in the heavily polluted atmosphere may cycle between soil and air quickly and locally. Vegetation can inhibit mercury emission from soil and are important sinks of atmospheric mercury in heavily air-polluted area.
TGM
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冯新斌, Xinbin
Atmospheric Environment 38 (2004) 6223-6230,-0001,():
-1年11月30日
Zinc
Mercury,
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冯新斌, Xinbin
Atmospheric Environment 38 (2004) 4721-4732,-0001,():
-1年11月30日
Mercury
Water/, air
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冯新斌, FENG
Chinese Science Bulletin 2004, Vol. 49, No. 19, 2068-2072,-0001,():
-1年11月30日
Since
mercury,
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