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Water Quality Assessment of Dachangshan ArtificialHabitat Development Demonstration Area

Animal Husbandry and Feed Science 2018年第4期10卷 226-230,240页

作者： Zhang Lu Tian Tao Ma Zhi Liu Yonghu Yang Jun Liu Hanchao li xue Center for Marine Ranching Engineering Science Research of Liaoning Province Dalian Ocean University Dalian 116023 China Supervisionof Fishing Port in Jinpu New District Dalian 116600 China 不详

[Objective] The paper was to evaluate the water quality environment in Dachangshan artificial habitat development demonstration area.[method] From 2013 to 2015, an environmental survey was conducted for eight voyages in Dachangshan artificial habitat development demonstration area of Changhai County, Dalian City, and 20 hydrochemical indexes including salinity, pH, and COD were monitored. The water quality of thesea area was analyzed by principal component analysis and single factor index method. [Result] Except for that the control area of the August 2014voyage belonged to IIclass sea water standard, the water quality in other stations of all voyages conformed toIclass sea water standard. Totally 20water quality indicators were synthesized into six principal components using principal component analysis, which explained 79.165% of the results;the principal component score was ranged from -1.536 to 3.706; the score in August 2014 was the highest, and the evaluation results were basicallyconsistent with the results of single factor index analysis. [Conclusion] The overall water quality is good in Dachangshan artificial habitat development demonstration area.

关键词： Dachangshan Artificial habitat development Water quality assessment Principal component analysis single factor index method

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Spatial Analysis on Content Distribution of Soil Heavy Metals Copper (Cu) and Cadmium (Cd) in Duanzhou District of Zhaoqing City

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Meteorological and Environmental Research 2024年第5期15卷 56-62,69页

作者： Jianqiao QIN Bihai CAI Yuanyuan XU Dexin XIONG School of Environmental and Chemical Engineering Zhaoqing UniversityZhaoqing 526061China Shenzhen Degree of Freedom Sci-Tech Co. Ltd.Shenzhen 518100China

This paper used atomic absorption spectrophotometry to determine the content distribution of Cu and Cd in the soil of Duanzhou District,Zhaoqing *** single factor index method,Nemerow comprehensive index method,pollution load index method,geoaccumulation index method,and potential ecological hazard index method were used to analyze the content and pollution status of Cu and Cd in the soil of Duanzhou District,providing a basis for understanding the pollution status of Cu and Cd in the soil of Zhaoqing City.

关键词： Atomic spectrophotometry single factor index method Nemerow composite index method Pollution load index method

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Determination of Harmful Elements and Analysis of Pollution Level in Lysimachia christinae

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Medicinal Plant 2022年第5期13卷 31-33页

作者： Li WAN Ya GUO Qin XIANG Qi XIAO Wenwu YANG Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area Wanzhou Institute for Food and Drug ControlChongqing 404000China

[Objectives]To detect content of Pb,Cd,Hg,As,Cu,Zn,and Cr in Lysimachia christinae,and to analyze the pollution level.[methods]Seven kinds of elements in *** were determined by Inductively coupled plasma mass spectrometry and analyzed by single index and comprehensive index.[Results]The seven heavy metal elements showed good linearity in their respective concentration *** recoveries of the samples were 84.5%-109.5%,and the RSD values were 2.30%-5.10%.Comparing the measured results of heavy metal elements with the limit values stipulated in the 2020 edition of the Chinese Pharmacopoeia and other standards,the Cr element in 19 batches of samples exceeded the standard,and the Zn element in 7 batches of samples exceeded the *** exceeding rates were 100.0%and 36.8%,respectively;the content of other heavy metal elements did not exceed the *** order of individual index from large to small was Cr,Zn,Cd,Hg,Cu,As,and Pb,and the average comprehensive pollution level was mild pollution and above.[Conclusions]*** was mainly polluted by Cr,followed by Zn;this study can provide basic data for drafting of the limit standard for heavy metal elements in ***.

关键词： Lysimachia christinae Heavy metals elements Harmful elements ICP-MS Microwave digestion single factor index method Comprehensive index method Pollution level analysis Quality control

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