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13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014

作者： Xiu, Guangli Wu, Xin Wang, Lina Wang, Fangfang Zhang, Yuankai Yu, Bizheng Wang, Zhangyuanhui Chen, Yuanxiang Xu, Fangyuan Wu, Laiming State Environmental Protection Key Laboratory of Risk Assessment and Control on Chemical Process School of Resources and Environmental Engineering East China University of Science and Technology Shanghai200237 China Xiangming Middle School Shanghai200020 China Key Scientific Research Base of Museum Environment State Administration for Cultural Heritage Shanghai Museum China

Particles have become an important factor in environmental quality of heritage preservation. Aiming to explore the air quality of the museum, this study conducted a series experiment in a museum in Shanghai, China. The result showed that the mass concentrations indoors of coarse particles, fine particles and ultrafine particles were about 20.50∼24.38μg/m, 23.39∼24.08μg/m and 16.02∼17.48μg/m, respectively. Over 97 % of particles were belonged to PM1 (diameter 42-, NO3-, NH4+ peaked at the particle size ranged from 0.32 to 0.56μm;Na+, Cldistributed uniformly;K+ appeared bi-modals with peaks in the size ranges of 0.32∼0.56μm and 3.2∼5.6μm, respectively. Mg+ concentrated in size range of 3.2∼5.6μm, and Ca+ in the particles with size range of 1.8∼3.2μm. Total organic acids distributed uniformly, acetate ion mass concentration was 1.238μg/m which was higher than formate ion and oxalate ion.

关键词： Particle size

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A Comparative Study on Aggregation and Sedimentation of Natural Goethite and Artificial Fe3o4 Nanoparticles in Synthetic and Natural Waters

SSRN

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SSRN 2022年

作者： Wu, Aiming Zhao, Xiaoli Yang, Chunyan Wang, Junyu Wang, Xia Liang, Weigang Zhou, Lingfeng Teng, Miaomiao Niu, Lin Tang, Zhi Hou, Guoqing Wu, Fengchang College of Environment Hohai University Nanjing210098 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China State Environment Protection Key Laboratory of Regional Eco-Process and Function Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China

Natural iron oxides nanomaterials have important roles in biogeochemical processes. In this study, the effects of pH, natural organic matter, and cations on aggregation and sedimentation of natural goethite and artificial Fe3O4 nanoparticles in water were investigated to learn more about the environmental behaviors of engineered and natural nanomaterials and how they differ. In addition, a novel extended DLVO theory that considered steric, gravitational, and magnetic attraction forces concurrently was specifically developed to provide mechanisms explanations. Specifically, Fe3O4 NPs were more likely than bulk goethite to aggregate (because of magnetic attraction interactions) at low HA concentrations and disperse at high HA concentrations. Besides, goethite was less prone to settle with the same concentration of NaCl than Fe3O4 NPs, but the opposite trend was found for the same concentration of CaCl2 because of the difference in maximum net energy (barrier) and strong Ca2+ bridging effectiveness of goethite in CaCl2 solution. Statistical models were established to evaluate colloidal stability of the particles. XPS and molecular dynamics simulation results suggested that ions were adsorbed onto particles via ionic polarization and that the binding free energies at high coverage followed the order Ca2+ > Na+ > Cl- and presence of cation bridging between particles. © 2022, The Authors. All rights reserved.

关键词： Positive ions

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Study on the Carbon Storage and Fixation of Phramites autralis in Baiyangdian Demonstration Area

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Procedia environmental Sciences 2012年 13卷 324-330页

作者： Wei Dong Jianmin Shu Ping He Guangwen Ma Ming Dong Chinese Research Academy of Environmental Sciences Beijing100012China State Environment Protection key Laboratory of Regional Eco-process and Function Assessment Beijing 100012 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing 100012 China College of Water Sciences Beijing Normal University Beijing 100875 China

Wetland ecosystem occupies an important position in the global carbon cycle with a strong ability of carbon storage and fixation. On the basis of field investigation and laboratory measurement, in the paper, the standing biomass and primary production of wetland Phragmites australis in Baiyangdian were study, and its ability of carbon storage and fixation in accordance with the principle of photosynthesis was measured, and then the potential ability of carbon storage from the perspective of efficiency for solar energy utilization was discussed. The results show that carbon storage of wetland Phragmites australis is large in Baiyangdian with 5.81 kg • m -2 , 7.14 kg • m -2 and 8.72 kg • m -2 respectively; carbon fixation is also very large with 2.54 kg • m -2 , 3.12 kg • m -2 and 3.81 kg • m -2 respectively. In addition, the underground biomass is larger than the aboveground biomass, and the ratio of the two is 2.38-3.30 with the average of 2.90. The underground carbon storage is nearly 3 times as much as the aboveground carbon storage. Wetland Phragmites australis in Baiyangdian has a strong ability of carbon fixation with 1.17 kg • m -2 • a -1 , 1.49 kg • m -2 • a-1 and 1.76 kg • m -2 • a-1 respectively, which is 1.7-3.4 times as much as the average ability of carbon fixation of the national terrestrial plants and 2.0- 4.0 times of that of the global plants.

关键词： Phragmites australis carbon storage and fixation Baiyangdian

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Redevelopment of urban brownfield sites in China:Motivation,history,policies and improved management

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Eco-environment & Health 2022年第2期1卷 63-72页

作者： Yiming Sun Hong Li Shuo Lei Kirk TSemple Frederic Coulon Qing Hu Jingyang Gao Guanlin Guo Qingbao Gu Kevin C.Jones State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences100012BeijingPR China Lancaster Environment Centre(LEC) Lancaster UniversityLancasterLA14YQUK Centre for Ecology and Hydrology Library AvenueBailriggLancaster LA14APUK State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental Sciences100012BeijingPR China School of Water Energy and EnvironmentCranfield UniversityMK430ALUK Southern University of Science and Technology 518055ShenzhenGuangdongPR China Beijing Huanding Environmental Big Data Institute 100083BeijingPR China Technical Centre for Soil Agricultural and Rural Ecology and EnvironmentMinistry of Ecology and Environment100012BeijingPR China

Rapid urbanisation in China has resulted in an increased demand for land in towns and *** upgrade and modernise,China has also moved many major industries from urban centres to less populated *** the high economic value of urban land,the transformation and utilisation of brownfield areas have become important economically and *** Chinese government has recognised the need for strong frameworks to safeguard soil and groundwater quality,with brownfield sites a key category for *** scientific,regulatory and decision-making frameworks are needed and being adopted to ensure practical,careful and wise use of central and localised government resources,to manage the reuse and regeneration of these brownfield *** paper reviews the context,policies and management procedures of developing brownfield sites in countries with a history of brownfield management and discusses China’s current situation and priorities for brownfield governance and *** include(1)clarification of brownfield site soil contamination risk control standards and risk assessment procedures,(2)the responsibilities of different national and local agencies,(3)the establishment of a national expert committee to advise on best practices,policy and process,(4)the use of registered brownfield databases at national,provincial,municipal and county levels,and(5)the set up of soil pollution prevention fund at the provincial level.

关键词： Brownfield Urban soils Management China USA UK

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A chamber study on the emission factors of gaseous and particulate pollutant of mosquito repellents incense 11

A chamber study on the emission factors of gaseous and parti...

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11th International Conference on Industrial Ventilation, Ventilation 2015

作者： Zhu, Chun Wang, Lina Li, Jingguang Zhang, Yalei College of Environmental Science and Engineering Tongji Unversity Shanghai China Department of Green City and Environment Shanghai Research Institute of Building Science Shanghai China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and Technology Shanghai China

Constant Injection Method was applied in a full scale air quality experimental chamber to obtain the emission factors (EFs) of PM2.5 and other gaseous pollutants produced from the burning process of disc solid mosquito-repellent incense, electric liquid mosquito-repellent incense and electric mat mosquito-repellent incense, respectively. Results showed that PM2.5 EFs of above three types of mosquito-repellent incense were 10.8 mg/h, 1.1 mg/h, 2.2 mg/h, respectively. The corresponding values of TVOC EFs were 103.4 mg/h, 69.5 mg/h and 58.8 mg/h, respectively. Via implementation of fitting analysis to particle size distribution (PSD) of released particles from disc solid mosquito-repellent incense, it was found that the PSD kept a well self-preservation signature. In addition, the fitting results showed that count median diameter (CMD) was 90 nm, geometric standard deviation (GSD) was 1.65. The emission factors of particle number were obtained via using mass concentration EFs and the corresponding PSD modeling results. In addition, modeling was conducted in a common residential house with air change rate of 2 h-1, each type of mosquito-repellent incense would cause TVOC concentration raising up with a factor of 1.8-3.2 times greater compared to the relative indoor air standards.

关键词： Particle size analysis

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Occurrence, sources and fate of pharmaceuticals and personal care products in the groundwater: A review

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Emerging Contaminants 2015年第1期1卷 14-24页

作者： Qian Sui Xuqi Cao Shuguang Lu Wentao Zhao Zhaofu Qiu Gang Yu a State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China School of Environment THU-VEOLIA Joint Research Center for Advanced Environmental TechnologyTsinghua UniversityBeijing 100084China

The presence of pharmaceuticals and personal care products(PPCPs)in the aquatic environment may pose potential threat to the ecosystem and human health,hence PPCPs have aroused much concern over the *** contamination of PPCPs in the groundwater,the main source of drinking water supply in many countries and regions,has been extensively studied in the last *** paper reviews the occurrence of frequently detected PPCPs,including antibiotics,anti-inflammatories,lipid-regulators,carbamazepine,caffeine,and N,N-diethyl-m-toluamide in groundwater,with special concern to the progress made over the past three *** emission sources for PPCPs in groundwater,such as wastewater and contaminated surface water,landfills,septic systems,livestock breeding and sewer leakage,are ***,adsorption,migration and degradation,the dominant mechanisms in the subsurface transport and fate of PPCPs,are discussed,and the insights into the future study of PPCPs in the groundwater are provided.

关键词： Pharmaceuticals and personal care products Groundwater Occurrence Source Adsorption Migration Biodegradation

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An online spatio-temporal sudden pollution simulation system for the Songhua River, China

An online spatio-temporal sudden pollution simulation system...

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IEEE International Conference of Online Analysis and Computing Science (ICOACS)

作者： Gula Tang Bao Xiang Zhaoliang Li Yunqiang Zhu Chinese Academy of Sciences Institute of Geographical Sciences and Natural Resources Research Beijing China ICube (UMR 7357) CNRS Strasbourg France University of Chinese Academy of Sciences Beijing China Chinese Research Academy of Environmental Sciences State Environment Protection key Laboratory of RegionalEco-process and Function Assessment Beijing China

ISBN: (纸本)9781467377560

The Songhua River Pollution Control Project is one of the most significant water-related environmental pollution control schemes in Northeastern China. This paper details the requirements, architecture, and main components of an online river sudden pollution simulation system (RSPSS) for scientific planning and decision making for a complicated natural river network. On the basis of a service-oriented method and spatiotemporal simulation technology, the following components are developed: multi-platform, multi-level, dynamic, and flexible data services; task services that can be used by other online ArcGIS Server Silverlight Projects; and integrated third-party hydrodynamic and water quality models, which can simulate complex river networks under natural hydrological and climatic conditions online. With the RSPSS, spatial and non-spatial datasets and functions are seamlessly integrated from distributed sources by standard services. Thus, this system can support effective cross-regional and cross-departmental decisions. A study of a real-world implementation of the suggested system involving the historical sudden pollution of the Songhua River based on the RSPSS is also presented.

关键词： Decision support systems Water pollution

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Resistance to salt stresses by aerobic granular sludge:sludge property and microbial community

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Frontiers of environmental Science & Engineering 2024年第8期18卷 107-116页

作者： Xiao Wu Hui Li Meili Wang Tianying Zhang Jiawei Li Yongdi Liu Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission School of Chemistry and EnvironmentSouthwest Minzu UniversityChengdu 610041China Institute for Environmental Pollution and Health School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China School of Life Sciences Southwest UniversityChongqing 400715China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China Institute of Qinghai-Tibetan Plateau Southwest Minzu UniversityChengdu 610041China

Saline wastewater is regarded as a challenge for wastewater treatment plants because high-salinity conditions negatively affect on traditional biological *** granular sludge(AGS)has gained attention as a promising technology for saline wastewater treatment because of its compact structure and the ability to withstand toxic ***,this study investigated the saltresistance performance,sludge properties and microbial community of AGS under low-salinity and high-salinity conditions,with the saline concentrations ranging from 0 to 50 g/*** results showed that AGS could withstand long-term saline stresses,and the maximum salinity reached 50 g/L within 113 *** salinities of 10,30,and 50 g/L,the chemical oxygen demand(COD)removal efficiencies were 90.3%,88.0%and 78.0%,*** also its maintained strength and aggregation at salinities of 10 and 30 g/*** of extracellular polymeric substances(EPS)by non-halophilic bacteria that enhanced sludge *** compact structure that ensured the microorganisms bioactivity helped to remove organic matters under salinities of 10 and 30 g/*** a salinity of 50 g/L,moderately halophilic bacteria,including Salinicola,Thioclava,Idiomarina and Albirhodobacter,prevailed in the *** dominant microbial communities shifted to moderately halophilic bacteria,which could maintain aerobic granular stabilization and remove organic matters under 50 g/L *** results in this study provide a further explanation for the long-term operation of AGS for treating saline wastewater at different *** is hoped that this work could bring some clues for the mystery of salt-resistance mechanisms.

关键词： Aerobic granular sludge Long-term saline stresses Performance Sludge property Microbial community

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Utilization Rate and Influencing Factors of Wildlife Passages in Xinjiang Protected Area System

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SSRN 2024年

作者： Fu, Mengdi Li, Shuang Wang, Jun Key Laboratory of Regional Eco-Process and Function Assessment and State Environment Protection Chinese Research Academy of Environmental Sciences Beijing100012 China Center for Biodiversity and Nature Reserve Chinese Academy of Environmental Planning Beijing100043 China

The expansion of linear infrastructure represents a significant threat to biodiversity. Given the paucity of research on the systematic conservation of species diversity, it becomes imperative to conduct extensive research on the utilisation of wildlife passages. We selected typical areas within the Xinjiang protected area system for the investigation and monitoring. This involved evaluating the utilization of passages during different periods and identifying the main influencing factors to improve the utilization rate of passages. The objective was to provide basic data support for revealing the interaction mechanism between linear infrastructure such as roads and fences and wild animal activities. The results indicated that 32 species of wild animals were photographed, including 13 species of birds representing 8 families from 5 orders, and 19 species of mammals representing 10 families from 5 orders. The relative abundance index of Cetartiodactyla and Perissodactyla wild animals, including bharal, goitered gazelle, asian wild ass, and wild bactrian camel, was notably high. Utilization rates of the passage at night were significantly higher than at other periods. The wild animals exhibited the highest selectivity for the underpass passage (JSInight=4.08) of the Kalamaili Mountain Ungulate Wildlife Nature Reserve and the fenced passage reserved of the Bosten Lake Scenic Area (JSInight=4.19). Wild animals exhibited a strong preference for the passage during sunrise and sunset, with 86.86% of the monitored plots JSIsunrise>0 and 91.30% of the monitored plots JSIsunset>0. The density of linear infrastructure was a key factor influencing passage utilization, with a significantly negative correlation. This was followed by the intensity of human activities. Furthermore, the larger the passage size and the higher the vegetation coverage, the higher the utilization rate of wildlife passages. It is recommended that the spatial layout and design of wildlife passages be optim

关键词： Fences

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Ceratopteris chunii and Ceratopteris chingii(Pteridaceae),two new diploid species from China,based on morphological,cytological,and molecular data

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Plant Diversity 2022年第3期44卷 300-307页

作者： Jun-Hao Yu Rui Zhang Qiao-Ling Liu Fa-Guo Wang Xun-Lin Yu Xi-Ling Dai Yong-Bo Liu Yue-Hong Yan Eastern China Conservation Centre for Wild Endangered Plant Resources Shanghai Chenshan Botanical GardenShanghai 201602China College of Life Science Shanghai Normal UniversityShanghai200234China Shenzhen Key Laboratory for Orchid Conservation and Utilization National Orchid Conservation Center of China and the Orchid Conservation&Research Center of ShenzhenShenzhen518114China Guangdong Provincial Key Laboratory of Applied Botany South China Botanical GardenChinese Academy of SciencesGuangzhou510650China College of Forestry Central South University of Forestry&TechnologyChangshaHunan410004China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing100012China

Understanding how natural hybridization and polyploidizations originate in plants requires identifying potential diploid ***,cryptic plant species are widespread,particularly in Ceratopteris(Pteridaceae).Identifying Ceratopteris cryptic species with different polyploidy levels is a challenge because Ceratopteris *** high degrees of phenotypic ***,two new cryptic species of Ceratopteris,Ceratopteris chunii and Ceratopteris chingii,are described and *** analyses reveal that each of the new species form a well-supported *** and *** are similar to Ceratopteris gaudichaudii *** and ***,respectively,but distinct from their relatives in the stipe,basal pinna of the sterile leaf or subelliptic shape of the fertile leaf,as well as the spore *** addition,chromosome studies indicate that *** and *** are both *** findings will help us further understand the origin of Ceratopteris polyploids in Asia.

关键词： Ceratopteris Phylogeny Chromosome Taxonomy Cryptic species

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