ATMOSPHERIC MERCURY DEPOSITION ON FANJING-MOUNTAIN-NATURE-RESERVE, GUIZHOU, CHINA

Fanjing Mountain Nature Reserve (FMNR) is surrounded with several Hg e mission sources within distances of 100-200 km. At the two sites studi ed, Tongren and Danzai, Hg emission and deposition fluxes, Hg concentr ation in the air, soil and other samples are all several hundred times higher than at other relatively clean areas. Hg accumulation in soil and moss at FMNR varies with the sampling heights. Total Hg deposition to this area has been estimated to be 115 mu g m(-2) y(-1) using moss bag technique. Dry deposition was determined to be about 5.2 mu g m(- 2) month(-1) during March to June, corresponding to more than 50% of t he total deposition. (C) 1998 Elsevier Science Ltd. All rights reserve d.