【摘要】：為了解2015年春節(jié)期間煙花爆竹燃放對(duì)天津市空氣質(zhì)量的影響,在天津市環(huán)境監(jiān)測(cè)中心利用在線(xiàn)監(jiān)測(cè)儀器對(duì)環(huán)境空氣中的氣態(tài)污染物濃度(SO_2、O_3、NO、NO_2等)、顆粒物濃度(PM_(1.0)、PM_(2.5)、PM_(10)等)、顆粒物水溶性離子、有機(jī)碳(OC)和元素碳(EC)進(jìn)行連續(xù)觀測(cè).通過(guò)煙花爆竹燃放時(shí)段和正常時(shí)段的對(duì)比,分析并探討煙花爆竹燃放對(duì)各污染物排放特征的影響.結(jié)果表明,煙花爆竹集中燃放對(duì)PM_(1.0)、PM_(2.5)、PM_(10)和SO_2的影響最為顯著,燃放高峰期(初一0:00),其濃度分別為284.00,428.00,714.00,283.14μg/m~3,且燃放期間,其平均值分別比非燃放期增加了2.99、2.54、2.07和3.27倍;煙花爆竹燃放對(duì)PM_(2.5)中水溶性離子K~+、Mg~(2+)、Cl~-、SO_4~(2-)、Na~+和NO_2~-影響最大,燃放高峰期,6種離子在PM_(2.5)中比例達(dá)35.28%.另外,PM_(2.5)中OC、EC濃度也在燃放高峰期出現(xiàn)明顯的峰值(分別為:15.68、2.96μg/m~3),分別為前一小時(shí)平均濃度的2.00和1.37倍.
[Abstract]:In order to understand the influence of fireworks and firecrackers on air quality in Tianjin during the Spring Festival in 2015, the concentrations of gaseous pollutants (SO_2,O_3,NO,NO_2, PM_, PM_ (10), etc.) and water-soluble ions in particles were used in Tianjin Environmental Monitoring Center. Organic carbon (OC) and elemental carbon (EC) were observed continuously. Based on the comparison between fireworks and firecrackers, the influence of fireworks and firecrackers on the emission characteristics of pollutants is analyzed and discussed. The results showed that the concentration of fireworks and firecrackers had the most significant effect on PM_, PM_ (2.5), PM_ (10) and SO_2. The concentration of fireworks and firecrackers was 284.00428.00714.00283.14 渭 g / m, respectively, and the average value of fireworks and firecrackers was 2.99, 2.54, 2.07 and 3.27 times higher than that of non-firing periods, respectively, and the concentration of fireworks and firecrackers was 284.00428.00714.00283.14 渭 g / m, which was 2.99, 2.54, 2.07 and 3.27 times higher than that of non-firing periods, respectively. Fireworks and firecrackers have the greatest effect on water-soluble ions K ~, Mg~ _ (2), Cl~-,SO_4~ _ (2 -), Na~ and NO_2~- in PM_ (2.5). At the peak of discharge, the proportion of six ions in PM_ (2.5) is 35.28%. In addition, the peak value of OC,EC concentration in PM_ (2.5) was 15.68,2.96 渭 g / m 鈮，

本文編號(hào)：2526179