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planning environmental Impact Assessment Orienting Sustainable Development: Opportunities and Challenges

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Chinese Journal of population,resources and Environment 2005年第4期3卷 33-39页

作者： Sun Yanjun 1, chen Xingeng 1, Bao Yun 2, peng Xiaochun 3 & Gao Changbo 1 1.School of environmental Science and Engineering, Sun Yat-sen University, guangzhou 510275, china 2. research Center for Coastal Ocean Science and Technology, Sun Yat-sen University, guangzhou 510275, china 3. south china institute of environmental Science, SEpA, guangzhou 510655, china

Strategic environmental Assessment is a frontier subject in the field of environmental Impact Assessment. In the past two decades, especially in recent years, much more importance has been attached to Strategic environmental Assessment. The environmental Impact Assessment Law of the p.r. china which was promulgated provides a great opportunity for the development of planning environmental Impact Assessment and brings great challenges for the development of traditional project environmental Impact Assessment and planning environmental Impact Assessment at the same time. In order to promote the implementation of "The EIA Law", the inherent limitations of project environmental Impact Assessment must be identified sufficiently and the theory research and practice of planning environmental Impact Assessment should be strengthened as well. Measures should be taken currently to enforce the operation system. The authors wish to offer a few references to the progress and implementation of planning environmental Impact Assessment in china.

关键词： planning environmental impact assessment strategic environmental assessment sustainable development opportunities challenges.

Differences in Toxicokinetics and Maternal Transfer between Lipophilic and proteinophilic Halogenated Organic pollutants in Laying Hens

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Environment & Health 2024年第10期2卷 712-720页

作者： Xiao-Jun Luo Qun-Jie Feng Chu-Hong Zhu Xi chen peng-peng chen Yan-Hong Zeng Bi-xian Mai State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of environmental resources Utilization and protection and Guangdong-Hong Kong-Macao Joint Laboratory for environmental pollution and Control Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640P.R.China State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of environmental resources Utilization and protection Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640P.R.China University of Chinese Academy of sciences Beijing 100049P.R.China

In this study,we conducted exposure experiments on egg-laying hens to explore the toxicokinetics and maternal transfer characteristics of lipophilic and proteinophilic halogenated organic pollutants(HOps).The lipophilic HOps included polychlorinated biphenyls(pCBs),polybrominated diphenyl ethers(pBDEs),and dechlorane plus(Dps),while the proteinophilic HOps included perfluorocarboxylic acids(pFCAs).The results revealed that most of lipophilic HOps exhibit lower depuration rate(kd)than *** kd of lipophilic HOps correlated with the octanol−water partition coefficient(log KOW)values in a V-shaped curve,whereas that of pFCAs correlated with the protein−water partition coefficient(log KpW)values in an inverted V-shaped *** depuration rate,rather than the uptake rate,was a leading factor in determining the bioaccumulation potential of HOps in *** the dominant factors determining the tissue distribution of the two types of compounds were explicit(fats vs phospholipids),chemical-specific tissue distribution was still *** egg-maternal concentration ratio was dependent on the exposure status,concentration,and maternal tissue *** a single maternal tissue may not be an appropriate method for assessing chemical maternal transfer *** have a greater maternal transfer potential(>80%of the total body burden)than lipophilic HOps(approximately 30%for BDE209 and Dps,and less than 10%for the others).Their lipophilic and partly proteinophilic nature makes the toxicokinetics and maternal transfer characteristics of BDE209 and Dps different from those of other lipophilic *** findings are crucial for enhancing our understanding of the behavior and fate of HOps in egg-laying hens.

关键词： halogenated organic pollutants laying hens toxicokinetic maternal transfer

performance and mechanism of CO_(2) absorption during the simultaneous removal of SO_(2) and NO_(x) by wet scrubbing process

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Journal of environmental sciences 2024年第1期135卷 534-545页

作者： peng Lu xianhui Yan Lyumeng Ye Dingsheng chen Dongyao chen Jianhang Huang Chaoping Cen Guangdong province Engineering Laboratory for Air pollution Control South China Institute of Environmental SciencesMinistry of Ecology and EnvironmentGuangzhou 510655China Guangdong provincial Key Laboratory of Water and Air pollution Control Guangzhou 510655China School of environmental Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China

The co-removal of CO_(2)while removing SO_(2)and NOxfrom industrial flue gas has great potential of carbon emission reduction but related research is *** this study,a wet scrubbing process with various urea solutions for desulfurization and denitrification was explored for the possibility of CO_(2)*** results showed that the urea-additive solutions were efficient for NOxand SO_(2)abatement,but deliveredrption *** addition of Ca(OH)_(2)dramatically enhanced the CO_(2)absorption,remained the desulfurization efficiency,unfortunately restricted the denitrification *** various operating parameters,pH of solution played a determining role during the *** contradictory pH demands of CO_(2)absorption and denitrification were observed and discussed in detail.A higher pH of solution than 10 was favorable for CO_(2)absorption,while the oxidizing of NO to NO_(2),NO_(2)^(-)or NO_(3)^(-)by NaClO_(2)was inhibited in this ***7pHrable for the conversion and absorption of NO and ***,the conversion of HCO_(3)^(-)to CO_(3)^(2-)was significantly inhibited,hence preventing the absorption of CO_(2).Large part of Ca(OH)_(2)became CaCO_(3)with a finer particle size,which covered the unreacted Ca(OH)_(2)surface after the *** analysis showed that the CO_(2)absorption in urea-NaClO_(2)-Ca(OH)_(2)absorbent was controlled by chemical reaction in early stage,then by ash layer diffusion in later stage.

关键词： CO_(2)absorption Synergistic desulfurization and denitrification Wet scrubbing process Urea-NaClO_(2)-Ca(OH)_(2)absorbent Carbonation reaction

Visible light-driven oxidation of non-native substrate by laccase attached on ru-based metal-organic frameworks

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Journal of environmental sciences 2024年第3期137卷 741-753页

作者： Wenguang Huang Wentao Zhang Guantongyi chen Yun chen Jun Ma Dawei Huang Qinzheng Zhaoc Bingdang Wu State environmental protection Key Laboratory of environmental pollution Health risk Assessment South China Institute of Environmental SciencesMinistry of Ecology and Environment of PRCGuangzhou 510655China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China School of environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215002China Key Laboratory of Suzhou Sponge City Technology Suzhou 215002China

Light-induced electron transfer can broaden the substrate range of ***,the efficiency of photo-enzyme coupling is limited by the poor combination of photosensitizer or photocatalyst with ***,we prepared the nano-photocatalyst MIL-125-NH_(2)@ru(bpy)by in site embedding ruthenium pyridine-diimine complex[ru(bpy)_(3)^(2+)into metal organic frameworks MIL-125-NH_(2)and associated it with multicopper oxidase(MCO)*** to[ru(bpy)_(3)]^(2+),the coupling efficiency of MIL-125-NH_(2)@ru(bpy)_(3)for enzymatic oxygen reduction increased by 35.7%.A series of characterizations confirmed that the amino group of laccase formed chemical bonds with the surface defects or hydrophobic groups of MIL-125-NH_(2)@ru(bpy)_(3).Consequently,the tight binding accelerated the quenching process and electron transfer between laccase and the immobilized ruthenium pyridine-diimine *** work would open an avenue for the synthesis of MOFs photocatalyst towards photo-enzyme coupling.

关键词： Laccase Light-driven biocatalysis ruthenium photocatalyst Metal-organic frameworks Enzyme immobilization

pAEs和Aps在水生生物中的累积与食物链传递

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中国环境科学 2024年第8期44卷 4674-4682页

作者：刘银娥罗孝俊黄晨晨王璐麦碧娴中国矿业大学环境与测绘学院江苏徐州221116 中国科学院广州地球化学研究所有机地球化学国家重点实验室与广东省资源环境利用与保护重点实验室广东广州510640

探究了7种邻苯二甲酸酯(pAEs)和13种新型增塑剂(Aps)在广东清远某废弃电子垃圾拆解区水生生物和北江段淡水鱼中的累积与食物链传递特征.结果表明,废弃电子垃圾拆解区水生生物和北江段淡水鱼体内pAEs总浓度分别为20~974ng/g ww和264~370n... 详细信息

探究了7种邻苯二甲酸酯(pAEs)和13种新型增塑剂(Aps)在广东清远某废弃电子垃圾拆解区水生生物和北江段淡水鱼中的累积与食物链传递特征.结果表明,废弃电子垃圾拆解区水生生物和北江段淡水鱼体内pAEs总浓度分别为20~974ng/g ww和264~370ng/g ww,以邻苯二甲酸二丁酯和邻苯二甲酸二(2-乙基己基)酯为主要污染物;Aps总浓度分别为1.25~181ng/g ww和27~62ng/g ww,以对苯二甲酸二乙基己酯为首要污染物.电子垃圾拆解区各水生生物中pAEs和Aps的浓度和组成差异显著,与其食性、生长阶段和代谢能力紧密相关.北江段鲮鱼和罗非鱼间无明显的种间差异,主要与其具有相似的栖息环境、摄食行为和脂肪含量有关.邻苯二甲酸二甲酯的湿重浓度和脂重浓度均与氮稳定同位素值(δ^(15)N)呈显著正相关,其营养级放大因子(TMF)分别为1.65和1.88.此外,邻苯二甲酸二苯酯的脂重浓度与δ^(15)N呈显著正相关,TMF为1.91.

关键词：邻苯二甲酸酯新型增塑剂水生生物生物积累食物链传递

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广东省船舶二氧化碳排放驱动因素与减排潜力

环境科学 2024年第1期45卷 115-122页

作者：翁淑娟刘颍颖唐凤沙青娥彭勃王烨嘉陈诚张雪驰李京洁陈豪琪郑君瑜宋献中暨南大学环境与气候研究院广州511443 暨南大学广州区域低碳经济研究基地广州511443 广东省海洋发展规划研究中心广州510220 中国电建集团贵阳勘测设计研究院有限公司贵阳650011 香港科技大学(广州)可持续能源与环境学域广州510000 暨南大学管理学院广州510632

船舶是广东省二氧化碳(CO_(2))的重要排放来源,研究广东省船舶CO_(2)排放的历史变化趋势、驱动因素和减排途径,可为广东省制定碳达峰与碳中和路径提供科学依据.采用排放因子法估算广东省船舶CO_(2)排放量,利用对数平均指数法(LMDI)识别... 详细信息

船舶是广东省二氧化碳(CO_(2))的重要排放来源,研究广东省船舶CO_(2)排放的历史变化趋势、驱动因素和减排途径,可为广东省制定碳达峰与碳中和路径提供科学依据.采用排放因子法估算广东省船舶CO_(2)排放量,利用对数平均指数法(LMDI)识别排放驱动因素,并结合情景分析法探究船舶CO_(2)的减排途径.结果表明:(1)2006~2020年广东省船舶CO_(2)排放量从331.94万t增加至639.29万t,其中干散货船和集装箱船是导致排放增加的主要船型.(2)2006~2020年广东省船舶CO_(2)排放的关键正向驱动因素是运输强度(51%)和经济因素(49%),主要负向驱动因素是能源强度(93%)和货类结构(7%).(3)到2030年,如果广东省船舶运输保持当前政策(基准情景)发展,将无法实现碳达峰.(4)到2060年,同时考虑优化能源结构和降低能源强度(节能低碳情景),相比于基准情景有56.51%的CO_(2)减排潜力.可为广东省制定船舶航运行业碳达峰与碳中和管控策略提供科学依据.

关键词：广东省船舶二氧化碳排放清单驱动因素情景分析

Distribution of per-and polyfluoroalkyl substances in blood,serum,and urine of patients with liver cancer and associations with liver function biomarkers

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Journal of environmental sciences 2024年第5期139卷 418-427页

作者： Cao Dai Lin peng Yanjie Li Zhendong Li Da chen Fei Wang Nan Lin Department of Hepatobiliary Surgery The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China School of Environment Guangdong Key Laboratory of Environmental Pollution and HealthJinan UniversityGuangzhou 510632China State Key Laboratory of environmental and Biological Analysis Department of ChemistryHong Kong Baptist UniversityHong Kong 999077China south china institute of environmental sciences MEEGuangzhou 510655China

Studies have shown that per-and polyfluoroalkyl substances(pFASs)may be hepatotoxic in animals or ***,data on clinical epidemiology are very *** this study,21pFASs were determined in patients with liver diseases,with the highest median concentrations detected in the serum sample(26.7 ng/mL),followed by blood(10.7 ng/mL)and urine(5.02 ng/mL).Higher total pFAS concentrations were found in hepatocellular carcinoma(HCC)patients compared to non-HCC patients,with significant discrepancies in serum and blood ***,significant correlations were also found among pFAS concentrations and age,gender,body mass index(BMI),and liver function biomarkers *** example,pFAS concentrations are significantly higher in males than in females;Several serum pFASs concentrations increase with age and BMI,while the serum perfluorohexane sulfonic acid(pFHxS)concentrations are negatively correlated with *** addition,multiple regression models adjusted for age,gender and BMI found that increased serum perfluorobutane sulfonic acid(pFBS),perfluoroheptane sulfonic acid(pFHpS)and perfluorohexylphosphonic acid(pFHxpA)conentrations are correlated with elevated alkaline phosphatase(ALp),aspartate aminotransferase(AST),and alpha-fetoprotein(AFp)(pr results provide epidemiological support for the future study on the potential clinical hepatotoxicity of pFAS.

关键词： per-and polyfluoroalkyl substances(pFASs) Liver cancer Serum Blood Urine Liver function biomarkers

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黑臭水体沉积物中新型溴代阻燃剂的污染特征

中国环境科学 2024年第7期44卷 3945-3954页

作者：黄晨晨曾艳红管克兰刘银娥鲁祺鸿汪善全罗孝俊麦碧娴中国矿业大学环境与测绘学院江苏徐州221116 中国科学院广州地球化学研究所有机地球化学国家重点实验室与广东省资源环境利用与保护重点实验室广东广州510640 中山大学环境科学与工程学院广东广州510006

测定了中国74个城市的173条黑臭水体沉积物中6种新型溴代阻燃剂(NBFrs)的污染现状.结果表明,十溴二苯乙烷(DBDpE)是沉积物中主要的NBFrs,其浓度范围为未检出~603.76ng/g干重,平均浓度占比高达(99.49±0.82)%;六溴苯(HBB)和五溴甲苯(pBT... 详细信息

测定了中国74个城市的173条黑臭水体沉积物中6种新型溴代阻燃剂(NBFrs)的污染现状.结果表明,十溴二苯乙烷(DBDpE)是沉积物中主要的NBFrs,其浓度范围为未检出~603.76ng/g干重,平均浓度占比高达(99.49±0.82)%;六溴苯(HBB)和五溴甲苯(pBT)占比较低.NBFrs的组成符合其在中国的生产和使用情况.尽管DBDpE、HBB和pBT均在不同城市间具有显著的浓度差异,但是总体呈现东部高(华南、华东和东北地区)、西部低(西北和西南地区)的分布格局,各地区的产业结构和城市化率是控制其空间分布的重要因素.DBDpE作为多溴联苯醚十溴工业品(BDE209)的替代品,其在沉积物中的浓度仍普遍低于BDE209,且DBDpE/BDE209比值与各城市的生产总值和工业产值呈显著的负相关关系.生态风险评价表明黑臭水体沉积物中DBDpE、HBB和pBT均不足以对水生生物造成暴露风险.

关键词：城市黑臭水体表层沉积物新型溴代阻燃剂污染特征生态风险评估

Stapled transperineal repair for low-and mid-level rectovaginal fistulas:A 5-year experience and comparison with sutured repair

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World Journal of Gastroenterology 2021年第14期27卷 1451-1464页

作者： Qian Zhou Zhi-Min Liu Hua-xian chen Dong-Lin ren Hong-cheng Lin Department of Coloproctology The Sixth Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510655Guangdong ProvinceChina Guangdong provincial Key Laboratory of Colorectal and pelvic Floor Diseases The Sixth Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510655Guangdong ProvinceChina Guangdong institute of Gastroenterology The Sixth Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510655Guangdong ProvinceChina

BACKGrOUND Currently,rectovaginal fistula(rVF)continues to be a surgical challenge worldwide,with a relatively low healing *** intermittent suture and poor suture materials may be the main reasons for *** To evaluate the efficacy and safety of stapled transperineal repair in treating *** This was a retrospective cohort study conducted in the Coloproctology Department of The Sixth Affiliated Hospital of Sun Yat-sen University(guangzhou,china).Adult patients presenting with rVF who were surgically managed by perineal repair between May 2015 and May 2020 were *** the 82 total patients,37 underwent repair with direct suturing and 45 underwent repair with *** demographic data,Wexner faecal incontinence score,and operative data were *** rate and associated risk factors were *** The direct suture and stapled repair groups showed similar clinical characteristics for aetiology,surgical history,fistula features,and perioperative Wexner *** stapled repair group did not show superior results over the suture repair group in regard to operative time,blood loss,and hospital ***,the stapled repair group showed better postoperative Wexner score(1.04±1.89 vs 2.73±3.75,p=0.021),less intercourse pain(1/45 vs 17/37,p=0.045),and lower recurrence rate(6/45 vs 17/37,p=0.001).There was no protective effect from previous repair history,smaller diameter of fistula(r control of defecation(Wexnerr stapled *** suture repair and preoperative high Wexner score(>10)were risk factors for fistula ***,stapled repair gave better efficacy in treating complex rVFs(i.e.,multiple transperineal repair history,mid-level fistula position,and poor control of defecation).CONCLUSION Stapled transperineal repair is advantageous for management of rVF,providing a high primary healing rate and low recurrence rate.

关键词： rectovaginal fistula Surgical repair Transperineal approach Stapled technique recurrence