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Identification of pollution sources in rivers using a hydrodynamic diffusion wave model and improved
《环境科学与工程前沿(英文)》 2023年 第17卷 第7期 doi: 10.1007/s11783-023-1685-1
● A hydrodynamic-Bayesian inference model was developed for water pollution tracking.
关键词: Identification of pollution sources Water quality restoration Bayesian inference Hydrodynamic model Inverse problem
Air pollution complex: Understanding the sources, formation processes and health effects
Min Shao,Shuxiao Wang,Armistead G. Russell
《环境科学与工程前沿(英文)》 2016年 第10卷 第5期 doi: 10.1007/s11783-016-0883-5
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 607-626 doi: 10.15302/J-FASE-2023517
As the common features of agroecosystems, ditches and ponds benefit the irrigation and drainage, as well as intercepting non-point source pollutants. However, most ditch-pond studies have been conducted in lowland areas. To test this source-sink assumption in upland areas, this study made observations on the ecological function of the ditch and pond system in a typical catchment in China. First, the changes in ponds in the catchment were analyzed using high-resolution remote sensing data. Then, the migration of agricultural pollutants in ditches and ponds were analyzed by field sampling and laboratory detection. The results showed that over the past 15 years the length of ditches in the catchment and the number of small ponds (< 500 m2) have increased by 32% and 75%, respectively. The rate of change in nutrient concentrations in the ditches and ponds were mostly from −20% to 20%, indicating ditches and ponds can be both sources and sinks for agricultural pollutants. Lastly, the contributing factors were explored and it was found that ditches and ponds are important sinks in dry season. However, during the rainy season, ditches and ponds become sources of pollutants, with the rapid drainage of ditches and the overflow of ponds in upland areas. The results of this study revealed that the ditches and ponds could be used for ecological engineering in upland catchments to balance drainage and intercept pollutants.
关键词: ditches ponds non-point source pollution mountainous areas nitrogen phosphorus
Qinghui Sun, Juan Li, Chen Wang, Anqi Chen, Yanli You, Shupeng Yang, Huihui Liu, Guibin Jiang, Yongning Wu, Yanshen Li
《环境科学与工程前沿(英文)》 2022年 第16卷 第1期 页码 1-1 doi: 10.1007/s11783-021-1429-z
关键词: Microplastics Distribution Toxicity Identification Biodegradation Environment
《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1340-z
• The source of DOM in surface water and sediment is inconsistent.
关键词: Dissolved organic matter Parallel factor analysis Excitation-emission matrices Photodegradation
Jiping Jiang, Feng Han, Yi Zheng, Nannan Wang, Yixing Yuan
《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1081-4
Uncertainty rules of pollution source inversion are revealed by stochastic analysis A release load is most easily inversed and source locations own largest uncertainty Instantaneous spill assumption has much less uncertainty than continuous spill The estimated release locations and times negatively deviate from real values The new findings improve monitoring network design and emergency response to spills
关键词: River chemical spills Emergency response Pollution source inversion Inverse uncertainty analysis Regional Sensitivity Analysis method (RSA) Monte Carlo analysis toolbox (MCAT)
Nitrogen pollution and source identification of urban ecosystem surface water in Beijing
Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG
《环境科学与工程前沿(英文)》 2014年 第8卷 第1期 页码 106-116 doi: 10.1007/s11783-012-0474-z
关键词: nitrogen concentration spatial and seasonal variation stable nitrogen isotope urban ecosystem source
迈向生态文明建设——基于第二次全国污染物普查结果的经验启示 Perspective
谢明辉, 段华波, 康鹏, 乔琦, 白璐
《工程(英文)》 2021年 第7卷 第9期 页码 1336-1341 doi: 10.1016/j.eng.2020.11.003
如何平衡经济发展与环境保护之间的关系并实现可持续,一直以来是全球备受关注的热门话题,也是突出难题。近年来,我国把生态文明建设摆在全局工作的突出位置,持续推动高质量和绿色低碳发展,特别是自改革开放以来由快速工业化和城镇化带来的环境污染问题开始得以遏制并显著好转。2020年6月10日,我国公布了《第二次全国污染源普查》调查报告,其为生态文明建设成效提供了强有力的定量化评价依据。通过对比第一次和第二次全国污染源普查结果,可知在维持经济总量稳定增长的同时,各类污染物的排放总量正在持续下降且趋势明显。显然,我国新时代绿色发展和生态文明建设策略成效显著,可为其他国家和地区可持续发展道路提供参考。
关键词: 生态文明 第二次全国污染源普查 绿色发展 可持续发展
秦忠,耿清蔚,臧贵敏
《中国工程科学》 2010年 第12卷 第6期 页码 113-116
通过对2005年与2000年入河污染物总量的分析表明,点源在入河污染物总量中的占比逐年下降,面源的占比迅速增加,尤其是TP(总磷) 入河量已经超过点源;面源污染呈“总量持平,结构调整”态势; 面源污染物总量构成中,农村居民生活位居第一,其次是水产养殖、水田径流等。在面源污染成因分析基础上,相应提出了太湖流域平原水网区面源污染控制的对策建议。
《环境科学与工程前沿(英文)》 2023年 第17卷 第6期 doi: 10.1007/s11783-023-1669-1
● EE2 photodegradation behavior in the presence of four WWTPs’ DOM was explored.
关键词: Photosensitivity sources 17α-ethinylestradiol Photodegradation Dissolved organic matter Wastewater treatment plants
Adaptive simulation of wave propagation problems including dislocation sources and random media
Hassan YOUSEFI, Jamshid FARJOODI, Iradj MAHMOUDZADEH KANI
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1054-1081 doi: 10.1007/s11709-019-0536-4
关键词: adaptive wavelet adaptive smoothing discontinuous solutions stochastic media spurious oscillations Tikhonov regularization minmod limiter
Liver cell therapies: cellular sources and grafting strategies
《医学前沿(英文)》 2023年 第17卷 第3期 页码 432-457 doi: 10.1007/s11684-023-1002-1
关键词: liver regeneration hepatocytes cholangiocytes stem cells organoids regulatory mechanisms transplantation/grafting strategies
曹湘洪
《中国工程科学》 2001年 第3卷 第5期 页码 35-43
从烃类原料裂解制乙烯的裂解性能和烃类馏份馏程及组成相关研究结果出发,提出了与世界乙烯原料轻质化的大趋势不同的扩大乙烯原料来源的思路:大庆原油的重馏份油即常三、减一线油和减二、减三线油酮苯脱蜡副产的蜡下油可以作乙烯原料。总结了该原料性能测试、模拟裂解炉评价及工业装置上应用的结果,证明该原料裂解时有较高的乙烯收率,也能保证裂解炉较长的运行周期,有明显的经济效益。
He NIU,Ziwei MO,Min SHAO,Sihua LU,Shaodong XIE
《环境科学与工程前沿(英文)》 2016年 第10卷 第5期 doi: 10.1007/s11783-016-0828-z
关键词: Ozone formation Secondary organic aerosol Multi-effects evaluation VOC abatement strategy
Potential sources of unintentionally produced PCB, HCB, and PeCBz in China: A preliminary overview
Xiaotu Liu, Heidelore Fiedler, Wenwen Gong, Bin Wang, Gang Yu
《环境科学与工程前沿(英文)》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1036-9
A preliminary analysis of potential sources for unintentionally produced PCB, HCB and PeCBz in China. Activity rates of sources for reference years from 2000 to 2015 provided. Emissions from a number of sources summarized and compared. Implications for future research and regulation discussed.
关键词: Unintentionally produced POPs Polychlorinated biphenyls Hexachlorobenzene Pentachlorobenzene sources of releases Annual production activities
标题 作者 时间 类型 操作
Identification of pollution sources in rivers using a hydrodynamic diffusion wave model and improved
期刊论文
Air pollution complex: Understanding the sources, formation processes and health effects
Min Shao,Shuxiao Wang,Armistead G. Russell
期刊论文
DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND
期刊论文
Research progress on distribution, sources, identification, toxicity, and biodegradation of microplastics
Qinghui Sun, Juan Li, Chen Wang, Anqi Chen, Yanli You, Shupeng Yang, Huihui Liu, Guibin Jiang, Yongning Wu, Yanshen Li
期刊论文
Identification of sources, characteristics and photochemical transformations of dissolved organic matter
期刊论文
Inverse uncertainty characteristics of pollution source identification for river chemical spill incidents
Jiping Jiang, Feng Han, Yi Zheng, Nannan Wang, Yixing Yuan
期刊论文
Nitrogen pollution and source identification of urban ecosystem surface water in Beijing
Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG
期刊论文
Photosensitivity sources of dissolved organic matter from wastewater treatment plants and their mediation
期刊论文
Adaptive simulation of wave propagation problems including dislocation sources and random media
Hassan YOUSEFI, Jamshid FARJOODI, Iradj MAHMOUDZADEH KANI
期刊论文
Screening the emission sources of volatile organic compounds (VOCs) in China by multi-effects evaluation
He NIU,Ziwei MO,Min SHAO,Sihua LU,Shaodong XIE
期刊论文