皇姑区陵东街点位夏季臭氧高值成因及污染防治措施

Causes of high ozone value in Lingdong Street of Huanggu District in summer and pollution prevention and control measures

本文对皇姑区近三年来陵东街点位夏季臭氧浓度逐年升高,超标情况较为严峻的成因作了调查与分析,通过对陵东街点位臭氧浓度及相关数据分析得到臭氧浓度与湿度呈负相关,与温度呈正相关;对陵东街点位周围污染源实地考察调查得到周边加油站、加气站和汽修企业较多,对点位臭氧浓度高值提供较高贡献率。结果表明:陵东街点位臭氧浓度每日7时开始上升,15时达到浓度最大值;应采取优先控制本时段加油站、加气站卸油,实行错峰卸油,并加强油气回收治理,以及汽修企业喷漆和废气排放的治理。

This study investigates and analyzes the causes of the severe increase in summer ozone concentration at Lingdong Street in Huanggu District over the past three years.Through the analysis of ozone concentration and related data at Lingdong Street,it is found that ozone concentration is negatively correlated with humidity and positively correlated with temperature.The on-site investigation of pollution sources around the Lingdong Street site reveals the significant presence of gas stations,refueling stations,and automobile repair enterprises,which contribute greatly to the high ozone concentration at the site.The results indicate that ozone concentration at Lingdong Street starts to rise at 7 o'clock every day,reaching its peak at 15 o'clock.To address this issue,priority should be given to controlling the unloading of oil at gas stations and refueling stations during this period,implementing staggered unloading,strengthening oil and gas recovery and treatment,and controlling spray painting and exhaust emissions from automobile repair enterprises.