北京市城市河道水體黑臭分級評價研究
發(fā)布時間:2018-01-10 15:24
本文關(guān)鍵詞:北京市城市河道水體黑臭分級評價研究 出處:《環(huán)境科學(xué)與技術(shù)》2016年S2期 論文類型:期刊論文
更多相關(guān)文章: 黑臭水體 分級評價 多元線性回歸 機(jī)理探討
【摘要】:基于水體黑臭感官指標(biāo)及水質(zhì)監(jiān)測數(shù)據(jù),構(gòu)建了北京市水體黑臭監(jiān)測指標(biāo)體系,采用多元線性回歸,建立了黑臭分級評價方法。通過理論值計算與實際監(jiān)測數(shù)值代入計算兩方面驗證了該方法,發(fā)現(xiàn)該方法比國家制定的黑臭水體評價方法略嚴(yán),比地表水環(huán)境質(zhì)量劣Ⅴ3類及劣Ⅴ4類標(biāo)準(zhǔn)稍松。將該方法應(yīng)用于案例研究中發(fā)現(xiàn),2013年北京市城市黑臭水體共有40條段。以長度計,空間上按水系劃分主要分布于北運河水系(73.2%);按行政區(qū)劃分,主要布于郊區(qū)(69.0%),且主要位于城市下游排水河道中。以時間計,枯水期黑臭最嚴(yán)重,豐水期次之,平水期最輕微。
[Abstract]:Black and odorous sensory index and water quality monitoring data based on the construction of Beijing city water black odor monitoring index system, using multiple linear regression, established the evaluation method of black odor classification. Numerical calculation and actual monitoring calculated by two aspects of the validation of the method through the theory of value evaluation method is made of black and odorous water the method is better than the national a little strict, than the surface water quality worse than grade V 3 and five 4 standards slightly loose. This method is applied to a case study in Beijing city in 2013 found that black smelly water consists of 40 sections. The length of the meter, water by the space division is mainly distributed in the north canal river (73.2%); divided according to administrative region, mainly distributed in the suburbs (69%), and mainly located in the city of river downstream drainage. In terms of time, the dry season black odor is the most serious, high water period, normal water period in the slightest.
【作者單位】: 北京市環(huán)境保護(hù)監(jiān)測中心;
【基金】:北京市環(huán)境保護(hù)監(jiān)測中心科研項目(JCZX20150114) 北京市環(huán)保局科研項目
【分類號】:X52;X824
【正文快照】: 從“九五”到“十二五”,北京市地表水環(huán)境質(zhì)量惡化趨勢得到控制并逐步改善,總體上穩(wěn)中趨好[1]。但水體黑臭現(xiàn)象依然存在,對民眾生活造成了不良影響,破壞了城市水環(huán)境綜合治理總體效果。根據(jù)《水污染防治行動計劃》,地級及以上城市建成區(qū)于2015年底前完成水體排查,公布黑臭水,
本文編號:1405788
本文鏈接:http://sikaile.net/kejilunwen/huanjinggongchenglunwen/1405788.html
最近更新
教材專著