Results 231 to 240 of about 256,826 (292)

Continuous Measurement of the Concentration and Degree of Contamination

IST International Surface Technology, 2015
Rebecca Dettloffs
semanticscholar   +2 more sources

Assessment of heavy metal enrichment factors and the degree of contamination in marine sediments from Tamaki Estuary, Auckland, New Zealand

Environmental Monitoring and Assessment, 2007
G. Abrahim, R. Parker
exaly   +2 more sources

TECHNIQUE FOR OPERATIONAL CONTROL OF THE DEGREE OF CONTAMINATION OF MICROELECTRONICS SUBSTRATES WITH ORGANIC CONTAMINANTS

Kontrol'. Diagnostika, 2022
A technique for ope rational control of the degree of contamination of microelectronic substrates with organic impurities is presented by the wetting angle of a controlled substrate by a drop of liquid. The technique consists in forming a drop of distilled water on the surface of the substrate under study, photographing the drop and using the resulting
A. V. Moroz, D. E. Rumyantseva, V. E. Filimonov, I. K. Aleksandrov   +3 more
openaire   +1 more source

Assessment of contamination levels of heavy metals in the agricultural soils using ICP-OES

Soil & sediment contamination, 2022
This work was carried out to monitor contamination levels of twelve heavy metals (HMs) in the agricultural soils of Kafr El-Zayat city in Egypt. The concentrations of Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Sr, and Pb were determined using inductively ...
M. Shaheen, W. Tawfik, Asmaa F. Mankola, J. Gagnon, B. Fryer, F. El-Mekawy   +5 more
semanticscholar   +1 more source

Contamination with multiple heavy metals decreases microbial diversity and favors generalists as the keystones in microbial occurrence networks.

Environmental Pollution, 2022
Soil contamination with multiple heavy metals poses threats to human health and ecosystem functioning. Using the Nemerow pollution index, which considers the effects of multiple heavy metals, we compared the diversity and composition of bacteria, fungi ...
Qian Qi, Caixia Hu, Jiahui Lin, Xuehua Wang, Caixian Tang, Z. Dai, Jianming Xu   +6 more
semanticscholar   +1 more source

Contamination characteristics, source identification, and source-specific health risks of heavy metal(loid)s in groundwater of an arid oasis region in Northwest China.

Science of the Total Environment, 2022
Heavy metal(loid)s accumulation in groundwater has posed serious ecological and health concerns worldwide. Source-specific risk apportionment is crucial to prevent and control potential heavy metal(loid)s pollution in groundwater.
D. Sheng, Xianhong Meng, X. Wen, Jun Wu, Haijiao Yu, Min Wu   +5 more
semanticscholar   +1 more source

Unprecedented marine microplastic contamination from the Xpress Pearl container vessel disaster.

Science of the Total Environment, 2022
The objectives of the research was to assess the coastal pollution by plastic nurdles, pyrolitic debris, associated potential toxic elements (PTEs) concentrations and mitigatory efforts by the worst ever maritime accident of a chemical and plastic ...
M. Sewwandi, Oshadi Hettithanthri, S.M. Egodage, A.A.D. Amarathunga, M. Vithanage   +4 more
semanticscholar   +1 more source

Multiple metal(loid) contamination reshaped the structure and function of soil archaeal community.

Journal of Hazardous Materials, 2022
Archaea are important participants in biogeochemical cycles of metal(loid)-polluted ecosystems, whereas archaeal structure and function in response to metal(loid) contamination remain poorly understood. Here, the effects of multiple metal(loid) pollution
Shanqing Yang, Qian Chen, Tong Zheng, Ying Chen, Xiaohui Zhao, Yifan He, Weiling Sun, Sining Zhong, Zhilong Li, Jiawen Wang   +9 more
semanticscholar   +1 more source

Aflatoxin contaminated degree detection by hyperspectral data using band index

Food and Chemical Toxicology, 2020
Aflatoxin is a highly toxic and carcinogenic substance with fluorescence characteristic. To explore the feasibility of detection the degree of aflatoxin contamination using hyperspectral imaging technology, we proposed a machine learning detection method based on support vector machine (SVM) combining band index and narrow band.
Han Zhongzhi, Deng Limiao
openaire   +2 more sources