Ozone replaces PM2.5 as the culprit of air pollution in Pearl River delta www.xinkebiao.com.cn

Replace the PM2.5 into the Pearl River Delta ozone air pollution "culprit" to replace the original title: ozone PM2.5 into the Pearl River Delta Air Pollution "culprit" in Guangzhou on 23 February, (Xu Qingqing Li Jiawei) 23 reporters from the Guangdong provincial Environmental Protection Bureau was informed that, according to the monitoring data in 2015, the proportion of Guangdong to air the primary pollutant is the biggest ozone, reached 40.5%, beyond the PM2.5 has become the most important pollutants in the region. "Unlike the PM2.5 that affects visibility, ozone has little effect on visibility, and sometimes it’s clear that the sky is blue and white, but the ozone has exceeded the standard."." The atmospheric environment in Guangdong province chief expert Zhong Liuju interview, and a different pollutants directly to air pollution, ozone is the two pollutants, mostly from automobile exhaust, industrial production emissions of nitrogen oxides and volatile organic compounds in "VOCs" light under the action of photochemicalreactions generation. Although the stratospheric ozone in the earth can absorb short wave ultraviolet radiation harmful to human body, but in the surface of the earth, high concentration of ozone will stimulate and damage the nervous system, respiratory system, and so on, have a negative effect on human health. In addition, VOCs (volatile organic compounds) is the key to form PM2.5 precursor, is an important source of haze and photochemical smog pollution, also has its own characteristics of high toxicity, especially industrial emission sources of VOCs are harmful to the environment and human body. Guangdong petrochemical enterprises are widely distributed. At the same time, Guangdong is also a major province of the national coatings, packaging, furniture and printing industry, and these enterprises are VOCs emission emitters". In addition, Guangdong ring Institute stakeholders also pointed out that Guangdong, as the country’s 50% container production base, container manufacturing VOCs emissions is also quite amazing. Guangdong provincial Environmental Protection Bureau said, "13th Five-Year" period, Guangdong will be caused by the ozone pollution "culprit" VOCs into the total emission reduction targets, the implementation of industry total control, and vigorously promote the comprehensive improvement of key industries VOCs petrochemical, plastics, printing, furniture and other enterprises, cut VOCs emissions from the source, improve the province’s air quality. (Editor) editor in chief: Kang Liang

臭氧取代PM2.5成珠三角大气污染“元凶”   原标题:臭氧取代PM2.5成珠三角大气污染“元凶”   中新社广州2月23日电 (许青青 李佳伟)记者23日从广东省环保厅获悉,根据2015年的监测数据,广东去年空气首要污染物中比例最大的是臭氧,达到了40.5%,超越PM2.5成为区域内最主要的污染物。   “与对能见度产生影响的PM2.5不同,臭氧几乎不对能见度产生影响,有时候明明看见蓝天白云,但其实臭氧已经超标了。”广东省大气环境首席专家钟流举接受采访时介绍,和直接污染空气的一次污染物不同,臭氧是二次污染物,大多由汽车尾气、工业生产排放出的氮氧化物和挥发性有机物“VOCs”在光照作用下发生光化学反应生成。   虽然地球高空平流层的臭氧可以吸收对人体有害的短波紫外线,但在地球表面,高浓度的臭氧会刺激和损害神经系统、呼吸系统等,对人体健康产生负面作用。   此外,VOCs(挥发性有机物)也是形成PM2.5的关键前体物,是灰霾和光化学烟雾污染的重要来源,其本身也具有高毒性特征,尤其是工业源排放的VOCs对环境及人体危害极大。   广东石油化工企业分布广泛,同时广东也是全国涂料、包装、家具和印刷大省,而这些行业企业都是VOCs“排放大户”。此外,广东省环科院相关人士还指出,广东作为全国50%集装箱的生产基地,集装箱制造业VOCs排放总量也相当惊人。   广东省环保厅方面表示,“十三五”时期,广东将把造成臭氧污染的“元凶”VOCs纳入总量减排指标,落实行业总量控制,大力推进石化、塑料、印刷、家具等重点行业企业VOCs综合整治,从源头削减VOCs排放,不断改善全省空气质量。(完) 责任编辑:康亮相关的主题文章: