Results 21 to 30 of about 676,874 (258)
Determination of Silver in Soil and Stream Sediments by ICP-MS/MS with Four Collision/Reaction Modes
Yankuang ceshi, 2022 BACKGROUND It is difficult to accurately determine the content of Ag in soil and sediment due to the mass spectrum interference of niobium, zirconium oxide and hydroxide during inductively coupled plasma-mass spectrometry (ICP-MS) analysis. OBJECTIVES To
LIU Yue +4 more
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Archives of Environmental Protection, 2015 Polybrominated diphenyl ethers (PBDEs) levels in environmental media have increased over the last 20-25 years in the world. In aquatic environments PBDEs were found to be accumulated along food chain and Endocrine disruptors toxicity. In this study PBDEs
Yang Suwen +3 more
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Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry [PDF]
Zhipu Xuebao, 2023 A method of headspace-solid-phase microextraction-gas chromatography/triple quadrupole mass spectrometry was established for simultaneous determination of 10 types of 51 odorous substances in water. The effects of extraction head, extraction temperature,
LIU Jian-zhuo1 +4 more
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Research on the Influence of Weather Patterns on Ozone Concentration: A Case Study in Tianjin
Atmosphere, 2022 Ozone (O3) is an important secondary substance that plays a significant role in atmospheric chemistry and climate change. Although O3 is essential in the stratosphere, it is harmful to human health in the troposphere, where this study was conducted.
Yuan Li +7 more
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Yankuang ceshi, 2019 BACKGROUND In current ecological environmental monitoring, the standard methods used to determine the total contents of inorganic elements, such as heavy metals in soil, include atomic absorption spectrometry (AAS), atomic fluorescence spectrometry (AFS)
TIAN Zhi-ren +5 more
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Shuiwen dizhi gongcheng dizhi, 2023 Analyzing the temporal and spatial changes of vegetation and its correlation with soil moisture and quantitatively revealing the impact of soil moisture on vegetation growth are of certain significance for drought monitoring and ecological protection ...
Mengmeng GAO +5 more
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Classifying Environmental Monitoring Systems [PDF]
, 2013 In this article the diversity of environmental monitoring systems is studied. The number of such systems is steadily increasing each year, as systems are tailored to specific, growing needs of authorities, corporate users and citizens. Because of this, it becomes harder to compare systems and their functionality.
Rönkkö, Mauno +2 more
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Haiyang Kaifa yu guanli, 2022 In order to promote the ecological environment protection and ecological disaster control of Yellow Sea, this paper analyzed the background of ecological environment and problems, and put forward suggestions for the construction of regional monitoring ...
Xiaocheng WANG +10 more
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Distribution Characteristics of Heavy Metals in Soils of the Anhui Section of the Huaihe River Basin
Yankuang ceshi, 2018 How to scientifically reflect the soil environmental quality of a large area through limited soil point monitoring is a major direction of current research.
QIAN Zhen-bing +4 more
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Environmental Monitoring Plan [PDF]
, 1993 This Environmental Monitoring Plan was written to fulfill the requirements of Department of Energy (DOE) Order 5400.1 and DOE Environmental Regulatory Guide DOE/EH 0173T. This Plan documents the background, organizational structure, and methods used for effluent monitoring and environmental surveillance at Sandia National Laboratories/California.
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