环境科学与管理
環境科學與管理
배경과학여관리
ENVIRONMENTAL SCIENCE AND MANAGEMENT
2012年
8期
57-61
,共5页
青浦城厢地区%PM10%PM2%变化特征
青浦城廂地區%PM10%PM2%變化特徵
청포성상지구%PM10%PM2%변화특정
Qingpu Chengxiang%PM10%PM25%variation characteristics
为了研究青浦城厢地区可吸入颗粒物污染状况,分析了2005年至2010年空气质量资料,结果表明:青浦城厢地区首要污染物为PM。其质量浓度呈逐年下降趋势。PM10浓度的月度变化幅度比较大,全年PM10浓度及超标率呈现“高一低一高”的变化趋势。春、冬季比较高,夏、秋季比较低。PM10质量浓度的日变化非常明显,呈现出“双峰”状分布。PM2.5和PM10的平均比值为0.531,表明该地区可吸人颗粒物中细颗粒物的比例较高,细颗粒物对人群的健康影响更为严重。PM10和PM2.5各月日均值之间和各月均值之间均呈高度相关,线性关系非常显著,二者之间回归直线关系存在,可用回归方程y=ax+b进行计算。
為瞭研究青浦城廂地區可吸入顆粒物汙染狀況,分析瞭2005年至2010年空氣質量資料,結果錶明:青浦城廂地區首要汙染物為PM。其質量濃度呈逐年下降趨勢。PM10濃度的月度變化幅度比較大,全年PM10濃度及超標率呈現“高一低一高”的變化趨勢。春、鼕季比較高,夏、鞦季比較低。PM10質量濃度的日變化非常明顯,呈現齣“雙峰”狀分佈。PM2.5和PM10的平均比值為0.531,錶明該地區可吸人顆粒物中細顆粒物的比例較高,細顆粒物對人群的健康影響更為嚴重。PM10和PM2.5各月日均值之間和各月均值之間均呈高度相關,線性關繫非常顯著,二者之間迴歸直線關繫存在,可用迴歸方程y=ax+b進行計算。
위료연구청포성상지구가흡입과립물오염상황,분석료2005년지2010년공기질량자료,결과표명:청포성상지구수요오염물위PM。기질량농도정축년하강추세。PM10농도적월도변화폭도비교대,전년PM10농도급초표솔정현“고일저일고”적변화추세。춘、동계비교고,하、추계비교저。PM10질량농도적일변화비상명현,정현출“쌍봉”상분포。PM2.5화PM10적평균비치위0.531,표명해지구가흡인과립물중세과립물적비례교고,세과립물대인군적건강영향경위엄중。PM10화PM2.5각월일균치지간화각월균치지간균정고도상관,선성관계비상현저,이자지간회귀직선관계존재,가용회귀방정y=ax+b진행계산。
In order to study the PM10 pollution status of Chengxiang area in Qingpu Distric ,this paper analyses the air quality data from 2005 to 2010. The results show that:The primary pollutant is PM10 and its concentration decreases year by year. The concentration of PM10 changes drastically monthly. The concentration of PM10 and its over - limit rate show a change trend as "high--low--high". The concentrations in spring and summer are relatively high, while those in autumn and winter are relatively low. The daily variation of PM10 concentration is very obvious, presenting a "Double peak" shape distribution. The average ratio of PM2.5 and PM10 is 0. 531, indicating a higher proportion of fine particulate matters in inhalable particles, which have more serious human health impacts. The monthly averages and daily averages of every month of PM10 and PM2.5 are highly correlated, showing a significant linear relationship. There exists a linear regression relationship, which can be calculated via the equation:y =ax +b.