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上海市大气羰基化合物水平研究
引用本文:黄娟,冯艳丽,熊斌,傅家谟,盛国英.上海市大气羰基化合物水平研究[J].环境科学,2009,30(9):2701-2706.
作者姓名:黄娟  冯艳丽  熊斌  傅家谟  盛国英
作者单位: 
基金项目:国家自然科学基金,上海市重点学科建设项目 
摘    要:建立乙腈-水-四氢呋喃三元梯度洗脱方法,利用HPLC-UV分离定量22种羰基化合物,并成功地分离了丙酮和丙烯醛.选取了2个采样点(工业区和商业区)对上海市大气中的羰基化合物进行了研究.结果表明,甲醛、乙醛、丙酮和2-丁酮(C1-C4羰基化合物)是上海市大气浓度较高的化合物,它们分别占羰基化合物总量的78.95%(工业区)和77.63%(商业区).在工业区,甲醛、乙醛、丙酮和2-丁酮的平均浓度分别为10.36、15.32、9.95和4.56μg/m3;在商业区,它们的平均浓度分别为10.00、10.04、7.80和2.81μg/m3.工业区的C1-C4羰基化合物平均水平要高于商业区.羰基化合物总量亦是工业区(53.64μg/m3)高于商业区(41.96μg/m3).羰基化合物的昼夜变化在工业区和商业区也比较一致,均是早高峰和晚上这2个时段的浓度很高,而其它时段较低.

关 键 词:羰基化合物  甲醛  乙醛  早高峰  晚高峰
收稿时间:2008/10/22 0:00:00
修稿时间:3/9/2009 12:00:00 AM

Ambient Levels of Carbonyl Compounds in Shanghai, China
HUANG Juan,FENG Yan-li,XIONG Bin,FU Jia-mo and SHENG Guo-ying.Ambient Levels of Carbonyl Compounds in Shanghai, China[J].Chinese Journal of Environmental Science,2009,30(9):2701-2706.
Authors:HUANG Juan  FENG Yan-li  XIONG Bin  FU Jia-mo and SHENG Guo-ying
Abstract:A ternary-mobile phase program with acetonitrile, water and tetrahydrofuran was developed to identify and quantify 22 carbonyl compounds species by HPLC-UV. The analytical method succeeded in separating acrolein from acetone. Two sampling sites (industrial district and business district) were chosen to study carbonyl compounds levels in ambient air of Shanghai. The results indicated that formaldehyde, acetaldehyde, acetone and 2-butanone (C1-C4 carbonyl compounds) were the most abundant carbonyl compounds in ambient air of Shanghai. The four carbonyls together accounted for 78.95% (industrial district) and 77.63% (business district) of the total carbonyl compounds, respectively. In industrial district, the mean concentrations of formaldehyde, acetaldehyde, acetone and 2-butanone were 10.36, 15.32, 9.95 and 4.56 μg/m~3, respectively; in business district, their mean levels were 10.00, 10.04, 7.80 and 2.81 μg/m~3, respectively. So the mean levels of C1-C4 carbonyl compounds in industrial district were higher than in business district. The higher concentrations of the total carbonyls were also found in industrial district (53.64 μg/m~3) than in business district (41.96 μg/m~3) . A similar diel variation occurred to the two districts that higher carbonyl concentrations were shown in morning peak and nighttime than in other three periods.
Keywords:carbonyl compounds  formaldehyde  acetaldehyde  morning peak  evening peak
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