靜態(tài)揚(yáng)塵對呼吸途徑健康風(fēng)險(xiǎn)評價(jià)的影響研究
[Abstract]:The contents of heavy metals (Cd, As, Cr, Ni and Hg) were determined by distributing and collecting soil samples in a waste chemical plant area and a sand yard area in the central part of Hunan Province, and the two-phase theory of aerodynamics and gas-solid was combined. The model of PM10 concentration of storage yard is set up for open-air pollution site, and the model of exposure assessment and health risk assessment are included to study the effect of static dust on exposure assessment and health risk assessment. Therefore, this paper provides the theoretical basis for the prevention, treatment and treatment of the soil pollution in the plant area and the area of the sand yard and the surrounding area, and provides a simple and practical parameter determination method for the health risk evaluation. The main conclusions are as follows: (1) The heavy metal content and vertical distribution in the surface soil of the contaminated site: the average content of the five heavy metals is the same as that of Cr and Ni, and the remaining 3 species are in excess of the national soil environmental quality secondary standard (GB15618-1995) and the soil background value of Hunan Province. As the content of As is the highest, the content of Cd is the second, the overproof rate of the sample is over 58. 54%, and the full-distance and coefficient of variation of Cd, As and Hg are all larger. The content of Cr, As and Hg in the soil of the plant area is higher than that of the same depth sand yard area, and the vertical distribution of most heavy metals (in addition to Ni) in the soil of the sand yard and the plant area shows a downward downward trend from the surface layer. while some heavy metals increase in the vertical direction or the content change is not large. (2) The PM10 concentration of the near ground is affected by the meteorological factors (such as wind direction and wind speed), and is affected by the S, SSE and SSW wind in the summer, and the average wind speed is the largest. The concentration of PM10 in the northern and commercial areas of the plant is at the maximum of 0.30mg/ m3, and the whole year is affected by the NW and NNW wind. The concentration of PM10 in the tourist area is more than 0. 15 mg/ m3. The concentration of PM10 is larger in the plant area and the area of the sand yard and its vicinity, and the concentration of PM10 decreases rapidly with the increase of the diffusion area. (3) The results showed that the daily exposure (ADI) was proportional to the concentration of PM10, inversely proportional to the diffusion area, and the daily exposure to the exposed population in the area of the pollution source and the nearby exposed population increased rapidly. The population is vulnerable to contaminants. The exposure dose of the child is higher than that of the adult, which makes the child more vulnerable to the contaminants due to the reasons of the physical characteristics, the behavior pattern, the life rule, and the like. (4) The single non-carcinogenic hazard quotient (HQ), the total hazard index (HI) and the life-long excess carcinogenic risk (R) of heavy metals are linearly increasing with the concentration of PM10. The concentration of PM10 is high, and the health threat to exposed population is the most. The non-carcinogenic risk of Cd and As, the contribution rate of the two to the total hazard index (HI) was 56. 73% and 37. 78%, respectively. When the concentration of PM10 exceeds 0.125 mg/ m3, HQ (Cd) 1; when the concentration of PM10 exceeds 0.175 mg/ m3, HQ (As) 1. Cd, Cr, As has a carcinogenic risk, and when the concentration of PM10 is 0.050 mg/ m3, R10-6 of three heavy metals and the level of cancer risk AsCrCd. The non-carcinogenic and carcinogenic risk of children is higher than that of adults. Ni has a low level of cancer risk for adults, and for children, when PM10 reaches 0.400 mg/ m3, R (Ni) exceeds the risk threshold and has an oncogenic risk. (5) The probability distribution of HQ and R of Cd, As, Cr, Ni and Hg in two types of exposed population is very close, and the probability of the HQ of Cd and As in the safety threshold is 69% and 61%, respectively. The probability distribution and reliability of the four non-threshold heavy metal carcinogenic risk values were respectively 53%, 84%, 96% and 4%, respectively. The concentration of heavy metals and the concentration of PM10 are the main factors that affect the daily exposure dose, non-carcinogenic risk level and the level of life-long oncogenic risk of Cd, As, Cr, Ni and Hg in the body weight of human body through the breathing path. Therefore, in order to prevent the occurrence of the regional risk accident, the heavy metal in the soil of the pollution source area is controlled and repaired. (6) The risk control values of the heavy metal Cd, Cr, As and Ni in the contaminated site were 2.13 mg/ kg, 0.046 mg/ kg, 0.89 mg/ kg and 10. 15mg/ kg, respectively, on the basis of the risk characterization results.
【學(xué)位授予單位】:湖南大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:X823;X513
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 于云江;張穎;車飛;孫朋;蔡煜;向明燈;王瓊;;環(huán)境污染的健康風(fēng)險(xiǎn)評價(jià)及其應(yīng)用[J];環(huán)境與職業(yè)醫(yī)學(xué);2011年05期
2 王宗爽;段小麗;王貝貝;王葉晴;錢巖;聶靜;張金良;;土壤/塵健康風(fēng)險(xiǎn)評價(jià)中的暴露參數(shù)[J];環(huán)境與健康雜志;2012年02期
3 汪晶,閻雷生;簡論對健康風(fēng)險(xiǎn)評價(jià)的管理[J];環(huán)境科學(xué)研究;1993年06期
4 田裘學(xué);健康風(fēng)險(xiǎn)評價(jià)的基本內(nèi)容與方法[J];甘肅環(huán)境研究與監(jiān)測;1997年04期
5 田裘學(xué);健康風(fēng)險(xiǎn)評價(jià)的不確定性及癌風(fēng)險(xiǎn)評價(jià)[J];甘肅環(huán)境研究與監(jiān)測;1999年04期
6 王永杰,賈東紅,孟慶寶,束富榮;健康風(fēng)險(xiǎn)評價(jià)中的不確定性分析[J];環(huán)境工程;2003年06期
7 諶宏偉;陳鴻漢;劉菲;何江濤;沈照理;孫靜;;污染場地健康風(fēng)險(xiǎn)評價(jià)的實(shí)例研究[J];地學(xué)前緣;2006年01期
8 潘小川;;室內(nèi)環(huán)境的健康風(fēng)險(xiǎn)評價(jià)[J];建筑熱能通風(fēng)空調(diào);2006年05期
9 張可;胡志鋒;張勇;周丹;高群杰;;重慶市城區(qū)飲用水源健康風(fēng)險(xiǎn)評價(jià)[J];四川環(huán)境;2007年02期
10 晁雷;周啟星;陳蘇;崔爽;;沈陽某冶煉廠廢棄廠區(qū)的人類健康風(fēng)險(xiǎn)評價(jià)[J];應(yīng)用生態(tài)學(xué)報(bào);2007年08期
相關(guān)會議論文 前10條
1 孫金華;馬建華;;污染場地健康風(fēng)險(xiǎn)評價(jià)述評[A];第七屆全國地理學(xué)研究生學(xué)術(shù)年會論文摘要集[C];2012年
2 杜布云;馮新斌;李平;周俊;;貴州萬山地區(qū)兒童汞暴露現(xiàn)狀及健康風(fēng)險(xiǎn)評價(jià)[A];第七屆全國環(huán)境化學(xué)大會摘要集-S12 重金屬污染與修復(fù)[C];2013年
3 段小麗;;以健康風(fēng)險(xiǎn)評價(jià)為核心,推動環(huán)?茖W(xué)決策[A];新觀點(diǎn)新學(xué)說學(xué)術(shù)沙龍文集9:環(huán)境污染與人體健康[C];2007年
4 孟慶寶;趙三平;朱勇兵;李瑞雪;王永杰;;營區(qū)場地污染健康風(fēng)險(xiǎn)評價(jià)與治理展望——以某部營區(qū)場地污染為例[A];2010中國環(huán)境科學(xué)學(xué)會學(xué)術(shù)年會論文集(第一卷)[C];2010年
5 龔選波;王廣才;;石油烴污染場地健康風(fēng)險(xiǎn)評價(jià)[A];地下水開發(fā)利用與污染防治技術(shù)專刊[C];2009年
6 朱建雯;王靈;錢翌;王亞宇;鄭春霞;;烏魯木齊市菜地土壤和蔬菜鉻含量特征及其健康風(fēng)險(xiǎn)評價(jià)[A];第二屆重金屬污染監(jiān)測風(fēng)險(xiǎn)評價(jià)及修復(fù)技術(shù)高級研討會論文集[C];2008年
7 韋炳干;姜逢清;李雪梅;牟書勇;;烏魯木齊市道路沙塵重金屬污染及其健康風(fēng)險(xiǎn)評價(jià)[A];第二屆重金屬污染監(jiān)測風(fēng)險(xiǎn)評價(jià)及修復(fù)技術(shù)高級研討會論文集[C];2008年
8 萬譯文;康天放;秦靜;張雁;;城市自來水中有機(jī)氯污染物的測定與健康風(fēng)險(xiǎn)評價(jià)[A];持久性有機(jī)污染物論壇2008暨第三屆持久性有機(jī)污染物全國學(xué)術(shù)研討會論文集[C];2008年
9 楊剛;伍鈞;孫百曄;周紅艷;;雅安市耕地土壤重金屬健康風(fēng)險(xiǎn)評價(jià)[A];第三屆全國農(nóng)業(yè)環(huán)境科學(xué)學(xué)術(shù)研討會論文集[C];2009年
10 周國宏;彭朝瓊;余淑苑;劉國紅;李思果;李錦;藍(lán)濤;劉寧;黃廣文;劉桂華;謝建濱;;深圳市飲用水源水重金屬污染物健康風(fēng)險(xiǎn)評價(jià)[A];2011年全國環(huán)境衛(wèi)生學(xué)術(shù)年會論文集[C];2011年
相關(guān)重要報(bào)紙文章 前4條
1 中國環(huán)境科學(xué)研究院環(huán)境污染與健康科研創(chuàng)新基地副研究員、首席專家助理 中國人群環(huán)境暴露行為模式研究項(xiàng)目負(fù)責(zé)人、《報(bào)告》和《手冊》主編 段小麗;加強(qiáng)基礎(chǔ)研究 提高健康風(fēng)險(xiǎn)評價(jià)準(zhǔn)確性[N];中國環(huán)境報(bào);2014年
2 本報(bào)記者 李軍;暴露參數(shù)填補(bǔ)國內(nèi)研究空白[N];中國環(huán)境報(bào);2014年
3 李萱 環(huán)境保護(hù)部環(huán)境與經(jīng)濟(jì)政策研究中心;國外如何立法保障人體健康?[N];中國環(huán)境報(bào);2014年
4 復(fù)旦大學(xué)公共衛(wèi)生學(xué)院教授、中國人群環(huán)境暴露行為模式研究技術(shù)顧問 闞海東;暴露參數(shù)如何應(yīng)用?[N];中國環(huán)境報(bào);2014年
相關(guān)博士學(xué)位論文 前7條
1 李飛;城鎮(zhèn)土壤重金屬污染的層次健康風(fēng)險(xiǎn)評價(jià)與量化管理體系[D];湖南大學(xué);2015年
2 諶宏偉;污染場地健康風(fēng)險(xiǎn)評價(jià)[D];中國地質(zhì)大學(xué)(北京);2006年
3 化勇鵬;污染場地健康風(fēng)險(xiǎn)評價(jià)及確定修復(fù)目標(biāo)的方法研究[D];中國地質(zhì)大學(xué);2012年
4 劉建龍;基于隨機(jī)理論的住宅室內(nèi)環(huán)境健康風(fēng)險(xiǎn)評價(jià)及模擬方法研究[D];湖南大學(xué);2008年
5 李麗娜;上海市多介質(zhì)環(huán)境中持久性毒害污染物的健康風(fēng)險(xiǎn)評價(jià)[D];華東師范大學(xué);2007年
6 李博;混合型城市污水再生水中微量有機(jī)污染物健康風(fēng)險(xiǎn)評價(jià)[D];鄭州大學(xué);2014年
7 仇付國;城市污水再生利用健康風(fēng)險(xiǎn)評價(jià)理論與方法研究[D];西安建筑科技大學(xué);2004年
相關(guān)碩士學(xué)位論文 前10條
1 張楠;食品中微量元素的健康風(fēng)險(xiǎn)評價(jià)[D];河北大學(xué);2008年
2 曹晨亮;煙草鎘的健康風(fēng)險(xiǎn)評價(jià)和消減技術(shù)研究[D];中國農(nóng)業(yè)科學(xué)院;2015年
3 汪健;可揮發(fā)性致癌物污染場地周邊人群健康風(fēng)險(xiǎn)研究[D];蘭州大學(xué);2015年
4 聶宇;某化工污染場地土壤健康風(fēng)險(xiǎn)評價(jià)與案例研究[D];華北電力大學(xué)(北京);2016年
5 聶立剛;北京市順義區(qū)農(nóng)村飲水現(xiàn)狀及健康風(fēng)險(xiǎn)評價(jià)[D];中國疾病預(yù)防控制中心;2016年
6 劉文楚;基于土地利用方式的城鎮(zhèn)土壤重金屬空間概率健康風(fēng)險(xiǎn)評價(jià)研究[D];湖南大學(xué);2016年
7 高智花;靜態(tài)揚(yáng)塵對呼吸途徑健康風(fēng)險(xiǎn)評價(jià)的影響研究[D];湖南大學(xué);2015年
8 趙洪陽;土壤地下水污染現(xiàn)場健康風(fēng)險(xiǎn)評價(jià)技術(shù)對比研究[D];清華大學(xué);2008年
9 黃龍;水源地健康風(fēng)險(xiǎn)評價(jià)研究[D];蘇州科技學(xué)院;2010年
10 崔超;污染場地健康風(fēng)險(xiǎn)評價(jià)研究[D];西北師范大學(xué);2012年
,本文編號:2389600
本文鏈接:http://sikaile.net/kejilunwen/huanjinggongchenglunwen/2389600.html