Cui Ru, Ma Yong-Liang
Huan Jing Ke Xue. 2013 Dec;34(12):4585-91.
Based on the EPA method T0-11 and 14/15 for measurement of toxic organics in air samples, fast VOCs detector, Summa canister and DNPH absorbent were used to determine the VOCs concentrations and the compositions in the ambient air of the workshops for different processes as well as the emission concentration in the exhaust gas. In all processes that involved VOCs release, concentrations of total VOCs in the workshops were 0.1-0.5 mg x m(-3), 1.5-2.5 mg x m(-3) and 20-200 mg x m(-3) for casting, cutting and painting respectively. Main compositions of VOCs in those workshops were alkanes, eneynes, aromatics, ketones, esters and ethers, totally over 20 different species. The main compositions in painting workshop were aromatics and ketones, among which the concentration of benzene was 0.02-0.34 mg x m(-3), toluene was 0.24-3.35 mg x m(-3), ethyl benzene was 0.04-1.33 mg x m(-3), p-xylene was 0.13-0.96 mg x m(-3), m-xylene was 0.02-1.18 mg x m(-3), acetone was 0.29-15.77 mg x m(-3), 2-butanone was 0.06-22.88 mg x m(-3), cyclohexene was 0.02-25.79 mg x m(-3), and methyl isobutyl ketone was 0-21.29 mg x m(-3). The VOCs emission from painting process was about 14 t x a(-1) for one single manufacturing line, and 840 t x a(-1) for the whole factory. According to the work flows and product processes, the solvent used during painting process was the main source of VOCs emission, and the exhaust gas was the main emission point.
基于美国环保署（EPA）用于测量空气样本中有毒有机物的T0 - 11和14/15方法，使用快速挥发性有机化合物（VOCs）检测仪、苏玛罐和2,4 - 二硝基苯肼（DNPH）吸附剂来测定不同工艺车间环境空气中的VOCs浓度及其组成，以及废气中的排放浓度。在所有涉及VOCs排放的工艺中，铸造、切割和喷漆车间的总VOCs浓度分别为0.1 - 0.5毫克·立方米⁻³、1.5 - 2.5毫克·立方米⁻³和20 - 200毫克·立方米⁻³。这些车间VOCs的主要成分包括烷烃、烯炔、芳烃、酮类、酯类和醚类，总共超过20种不同物质。喷漆车间的主要成分是芳烃和酮类，其中苯的浓度为0.02 - 0.34毫克·立方米⁻³，甲苯为0.24 - 3.35毫克·立方米⁻³，乙苯为0.04 - 1.33毫克·立方米⁻³，对二甲苯为0.13 - 0.96毫克·立方米⁻³，间二甲苯为0.02 - 1.18毫克·立方米⁻³，丙酮为0.29 - 15.77毫克·立方米⁻³，2 - 丁酮为0.06 - 22.88毫克·立方米⁻³，环己烯为0.02 - 25.79毫克·立方米⁻³，甲基异丁基酮为0 -
