唐山市钢结构制造业VOCs排放特征及其反应活性
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摘要
选取3个典型钢结构制造业企业为研究对象,以USEPA Method 18固定源标准采样方法为基础,对底涂工序、面涂工序和常温烘干工序无组织排放的挥发性有机物(volatile organic compounds,VOCs)进行采集,所采集的样品通过自动进样器进入预浓缩仪,预浓缩后在氦气推动下进入GC/MSD,进行VOCs浓度及组分特征的测定,并以此分析该行业VOCs的排放特征、臭氧生产潜势和二次有机气溶胶生成潜势。结果表明:底涂工序、面涂工序、常温烘干工序总挥发性有机物(total volatile organic compounds,TVOC)浓度分布区间分别为366. 99～1057. 05,355. 97～1048. 69,495. 04～1179. 70 mg/m3;该行业臭氧生成潜势为(4. 12±2. 61) g/g;二次有机气溶胶生成潜势为(2. 39±2. 00) g/g。
Three typical steel structure manufacturing enterprises were selected as the research objects,and the fixed-source standard sampling method-USEPA Method 18 was taken as the basis to collect volatile organic compounds( VOCs) samples of unorganized emission from primer painting,finishing painting,and room-temperature drying processes. The collected samples entered the pre-concentrator through automatic sample injector,and then entered GC/MSD after pre-concentration with helium as the carrier gas to determine the concentration and the component characteristics of VOCs,and by which the emission characteristics of VOCs,ozone formation potential( OFP) as well as the secondary organic aerosol( SOA) formation potential were analyzed. The results indicated that: the concentration of total volatile organic compounds( TVOCs) from primer painting,finishing painting and room-temperature drying processes were 366. 99 ～ 1057. 05 mg/m~3,355. 97 ～ 1048. 69 mg/m~3,and 495. 04～1179. 70 mg/m3,respectively; the ozone formation potential of steel structure manufacturing industry turned out to be( 4. 12±2. 61) g/g; while the SOA potential formation was( 2. 39±2. 00) g/g.
Three typical steel structure manufacturing enterprises were selected as the research objects,and the fixed-source standard sampling method-USEPA Method 18 was taken as the basis to collect volatile organic compounds( VOCs) samples of unorganized emission from primer painting,finishing painting,and room-temperature drying processes. The collected samples entered the pre-concentrator through automatic sample injector,and then entered GC/MSD after pre-concentration with helium as the carrier gas to determine the concentration and the component characteristics of VOCs,and by which the emission characteristics of VOCs,ozone formation potential( OFP) as well as the secondary organic aerosol( SOA) formation potential were analyzed. The results indicated that: the concentration of total volatile organic compounds( TVOCs) from primer painting,finishing painting and room-temperature drying processes were 366. 99 ～ 1057. 05 mg/m~3,355. 97 ～ 1048. 69 mg/m~3,and 495. 04～1179. 70 mg/m3,respectively; the ozone formation potential of steel structure manufacturing industry turned out to be( 4. 12±2. 61) g/g; while the SOA potential formation was( 2. 39±2. 00) g/g.
引文
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[14]程水源,李文忠,魏巍,等.炼油厂分季节VOCs组成及其臭氧生成潜势分析[J].北京工业大学学报,2013,39(3):438-444.
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[16]王倩,陈长虹,王红丽,等.上海市秋季大气VOCs对二次有机气溶胶的生成贡献及来源研究[J].环境科学,2013,34(2):424-433.
[17]刘俊,楚碧武,彭林,等.北京市二次有机气溶胶生成潜势的日变化规律[J].环境科学,2018(6):2505-2511.
[18]虞小芳,程鹏,古颖纲,等.广州市夏季VOCs对臭氧及SOA生成潜势的研究[J].中国环境科学,2018,38(3):830-837.
[19] Derwent R G,Jenkin M E,Utembe S R,et al. Secondary organic aerosol formation from a large number of reactive man-made organic compounds[J]. Science of the Total Environment,2010,408(16):3374-3381.
[2]徐薇.城市区域大气污染物暴露评估方法及其健康评价[D].上海:华东理工大学,2016.
[3]洪沁,常宏宏.家具涂装行业VOCs污染特征分析[J].环境工程,2017,35(5):82-86.
[4]龚芳.我国人为源VOCs排放清单及行业排放特征分析[D].西安:西安建筑科技大学,2013.
[5]黄薇薇.我国工业源挥发性有机化合物排放特征及其控制技术评估研究[D].杭州:浙江大学,2016.
[6] Kodavanti P R,Royland J E,Richards J E,et al. Toluene effects on oxidative stress in brain regions of young-adult,middle-age,and senescent Brown Norway rats[J]. Toxicology&Applied Pharmacology,2011,256(3):386-398.
[7] Win-Shwe T T,Fujimaki H. Neurotoxicity of toluene[J].Toxicology Letters,2010,198(2):93-99.
[8]赵锐,黄络萍,张建强,等.成都市典型溶剂源使用行业VOCs排放成分特征[J].环境科学学报,2018,38(3):1147-1154.
[9]闫雨龙,彭林.山西省人为源VOCs排放清单及其对臭氧生成贡献[J].环境科学,2016,37(11):4086-4093.
[10] Zeinali M,Mcconnell L L,Hapeman C J,et al. Volatile organic compounds in pesticide formulations:Methods to estimate ozone formation potential[J]. Atmospheric Environment,2011,45(14):2404-2412.
[11] Hakami A,Harley R A,Milford J B,et al. Regional,threedimensional assessment of the ozone formation potential of organic compounds[J].Atmospheric Environment,2004,38(1):121-134.
[12]刘芮伶,李礼,余家燕,等.重庆市夏秋季VOCs对臭氧和二次有机气溶胶生成潜势的估算[J].环境科学研究,2017(8):1193-1200.
[13]武蕾丹,王秀艳,杨文,等.某工业园区VOCs臭氧生成潜势及优控物种[J].环境科学,2018,39(2):511-516.
[14]程水源,李文忠,魏巍,等.炼油厂分季节VOCs组成及其臭氧生成潜势分析[J].北京工业大学学报,2013,39(3):438-444.
[15]张林,牛琳.无组织源VOCs排放及臭氧生成潜势分析[J].环境工程,2017,35(10):156-160.
[16]王倩,陈长虹,王红丽,等.上海市秋季大气VOCs对二次有机气溶胶的生成贡献及来源研究[J].环境科学,2013,34(2):424-433.
[17]刘俊,楚碧武,彭林,等.北京市二次有机气溶胶生成潜势的日变化规律[J].环境科学,2018(6):2505-2511.
[18]虞小芳,程鹏,古颖纲,等.广州市夏季VOCs对臭氧及SOA生成潜势的研究[J].中国环境科学,2018,38(3):830-837.
[19] Derwent R G,Jenkin M E,Utembe S R,et al. Secondary organic aerosol formation from a large number of reactive man-made organic compounds[J]. Science of the Total Environment,2010,408(16):3374-3381.
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