Atmospheric BTEX compounds（benzene, toluene, ethylbenzene and xylenes） in a rural site of the North China Plain（NCP） were preliminarily investigated in winter, and the outdoor concentrations（25.8–236.0 μg/m^3）...Atmospheric BTEX compounds（benzene, toluene, ethylbenzene and xylenes） in a rural site of the North China Plain（NCP） were preliminarily investigated in winter, and the outdoor concentrations（25.8–236.0 μg/m^3） were found to be much higher than those reported in urban regions. The pollution of BTEX inside a farmer＇s house was even more serious, with combined concentrations of 254.5–1552.9 μg/m^3. Based on the ratio of benzene to toluene（1.17 ± 0.34） measured, the serious BTEX pollution in the rural site was mainly ascribed to domestic coal combustion for heating during the winter season. With the enhancement of farmers＇ incomes in recent years, coal consumption by farmers in the NCP is rapidly increasing to keep their houses warm, and hence the serious air pollution in rural areas of the NCP during winter, including BTEX, should be paid great attention.展开更多
基金supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDB05010100)the National Basic Research and the Development Program 973 (No. 2010CB732304)+1 种基金the National Natural Science Foundation of China (No. 21177140, 41203070)the China Postdoctoral Science Foundation (No. 2012M520404)
文摘Atmospheric BTEX compounds（benzene, toluene, ethylbenzene and xylenes） in a rural site of the North China Plain（NCP） were preliminarily investigated in winter, and the outdoor concentrations（25.8–236.0 μg/m^3） were found to be much higher than those reported in urban regions. The pollution of BTEX inside a farmer＇s house was even more serious, with combined concentrations of 254.5–1552.9 μg/m^3. Based on the ratio of benzene to toluene（1.17 ± 0.34） measured, the serious BTEX pollution in the rural site was mainly ascribed to domestic coal combustion for heating during the winter season. With the enhancement of farmers＇ incomes in recent years, coal consumption by farmers in the NCP is rapidly increasing to keep their houses warm, and hence the serious air pollution in rural areas of the NCP during winter, including BTEX, should be paid great attention.
