全文获取类型
收费全文 | 155篇 |
免费 | 3篇 |
国内免费 | 4篇 |
专业分类
安全科学 | 4篇 |
废物处理 | 7篇 |
环保管理 | 13篇 |
综合类 | 14篇 |
基础理论 | 35篇 |
污染及防治 | 63篇 |
评价与监测 | 19篇 |
社会与环境 | 7篇 |
出版年
2023年 | 1篇 |
2021年 | 5篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2018年 | 4篇 |
2017年 | 9篇 |
2016年 | 5篇 |
2015年 | 6篇 |
2014年 | 6篇 |
2013年 | 21篇 |
2012年 | 9篇 |
2011年 | 21篇 |
2010年 | 11篇 |
2009年 | 9篇 |
2008年 | 11篇 |
2007年 | 13篇 |
2006年 | 8篇 |
2005年 | 6篇 |
2004年 | 1篇 |
2003年 | 3篇 |
2002年 | 4篇 |
1999年 | 4篇 |
1998年 | 2篇 |
1990年 | 1篇 |
排序方式: 共有162条查询结果,搜索用时 609 毫秒
161.
Susana Y. Kimur Weiwei Zheng Taylor N. Hipp Joshua M. Allen Susan D. Richardson 《环境科学学报(英文版)》2017,29(8):285-295
Disinfection by-products(DBPs) are a complex mixture of compounds unintentionally formed as a result of disinfection processes used to treat drinking water. Effects of long-term exposure to DBPs are mostly unknown and were the subject of recent epidemiological studies. However,most bioanalytical methods focus on a select few DBPs. In this study, a new comprehensive bioanalytical method has been developed that can quantify mixtures of organic halogenated compounds, including DBPs, in human urine as total organic chlorine(TOCl), total organic bromine(TOBr), and total organic iodine(TOI). The optimized method consists of urine dilution, adsorption to activated carbon, pyrolysis of activated carbon, absorption of gases in an aqueous solution, and halide analysis with ion chromatography and inductively coupled plasma-mass spectrometry. Spike recoveries for TOCl, TOBr, and TOI measurements ranged between 78% and 99%. Average TOCl, TOBr, and TOI concentrations in five urine samples from volunteers who consumed tap water were 1850, 82, and 21.0 μg/L as X~-, respectively.Volunteers who consumed spring water(control) had TOCl, TOBr, and TOI average concentrations in urine of 1090, 88, and 10.3 μg/L as X~-, respectively. TOCl and TOI in the urine samples from tap water consumers were higher than the control. However, TOBr was slightly lower in tap water urine samples compared to mineral water urine samples, indicating other sources of environmental exposure other than drinking water. A larger sample population that consumes tap water from different cities and mineral water is needed to determine TOCl, TOBr, and TOI exposure from drinking water. 相似文献
162.
Rosa María Pérez-Pastor Susana García-Alonso Alberto José Quejido Cabezas 《Environmental science and pollution research international》1999,6(3):141-146
From November 1995 to October 1996, airborne concentrations of VOCs were measured in the Madrid area to study the organic
pollution in general, and the correlation between different pollutants in relation to such parameters as location and season.
Mean concentrations for up to 90 compounds were measured at four test sites, including both urban and suburban areas.
At the urban sites, maximum concentrations occurred in the autumn and winter, whereas minimum concentrations were reached
in summer and spring. Similar changes were obtained for the lesscontaminated site located in the SE of the city, whereas a
different pattern was found at the site in the NW of the city due to meteorological aspects. Mean levels of hydrocarbons in
Madrid were quite similar to those found in other European cities.
Chemometrical techniques were applied to the set of data in order to assess the influence of such factors as traffic, temperature
and seasonal variations on the VOC levels. 相似文献