scholarly journals Study on the Content and Influence of Heavy Metal Elements in Dust of Xiqing District of Tianjin

2021 ◽  
Vol 248 ◽  
pp. 01042
Author(s):  
YanShan Yin ◽  
Jin Xu
Keyword(s):  
Heavy Metal ◽  
Air Quality ◽  
Human Health ◽  
Inductively Coupled Plasma ◽  
Great Influence ◽  
Electric Heating ◽  
Atmospheric Environment ◽  
Total Dust ◽  
Metal Elements ◽  
Heavy Metal Elements

At present, heavy metal elements in dust have great influence on air quality and human health,therefore, the content and influence of heavy metal elements on campus were studied. Firstly, PM10 and total dust in the autumn campus atmosphere were sampled for 10 consecutive days, and then digested by electric heating plate digestion method. Then, inductively coupled plasma emission spectrometer (ICP-OES) was used to detect and analyze the content and concentration ratio of seven heavy metal elements Cu, Pb, Cd, Zn, Cr, Hg and Ba in PM10 and total dust. Finally, through comparative analysis, it is concluded that heavy metal pollutants in the atmospheric environment are mainly Zn and Ba, and the concentrations of Cd, Zn and Ba are seriously exceeded, so the air quality in Xiqing District of Tianjin is poor, and the particle size distribution of Cd and Hg makes it easy to enter the human body, which is especially unfavorable to human health.

scholarly journals Heavy metal elements in toiletries analyzed by INAA, ICP-MS and SEM-EDX

2011 ◽  
Vol 1 (1) ◽  
pp. 393-398
Author(s):  
E. Furuta ◽  
H. Minowa ◽  
K. Tagami ◽  
Y. Okada ◽  
H. Nakahara
Keyword(s):  
Heavy Metal ◽  
Detection Limit ◽  
Inductively Coupled Plasma ◽  
Particle Sizes ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements ◽  
High Concentrations

AbstractRecently, many toiletries claiming inclusion of platinum (Pt), silver (Ag) and gold (Au) as additives are sold in ordinary cosmetics shops. However, their concentrations are not clearly indicated. In the present work, these toiletries were analyzed for heavy metal elements by instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS), and the particle sizes were observed by scanning electron microscope (SEM) and the constitutions of the small particles were analyzed by energy dispersive X-ray spectroscopy (EDX). The concentrations of Pt in the toiletries observed were from 1 to 80 ppm. The lower detection limit of Pt by INAA was about 1 ppm because of the presence of sodium in high concentrations for those samples. Consequently, some toiletries which should have had Pt according to the manufactures were found not to contain Pt probably because it was less than the detection limit. On the other hand, there were a few toiletries that were found to contain Ag although the addition of Ag was not mentioned by the manufactures. It is considered that these non-indicated Ag were included as impurities of the added Au. The concentrations of the non-indicated Ag were even higher than those of the indicated Ag. A very small amount of Sr, which was nominated in the negative list of Japan, was also detected in 2 out of 5 kinds of toiletries analyzed by ICP-MS.

scholarly journals Recent advances in the analysis of non-traditional stable isotopes by multi-collector inductively coupled plasma mass spectrometry

2017 ◽  
Vol 32 (10) ◽  
pp. 1848-1861 ◽  
Author(s):  
Dawei Lu ◽  
Tuoya Zhang ◽  
Xuezhi Yang ◽  
Peng Su ◽  
Qian Liu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Heavy Metal ◽  
Stable Isotopes ◽  
Inductively Coupled Plasma ◽  
Clear Definition ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Stable Isotopic ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements

Non-traditional stable isotopes, with no clear definition yet, generally refer to isotopes beyond C, H, O, N, and S with small variations in natural stable isotopic compositions, such as isotopes of transition and heavy metal elements.

Recent Progress in Research on PM2.5 in Subways

2021 ◽  
Author(s):  
Li Chang ◽  
Wen Tong Chong ◽  
Xinru Wang ◽  
Fei Pei ◽  
Xingxing Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Recent Progress ◽  
Metal Elements ◽  
Harmful Substances ◽  
Heavy Metal Elements

Nowadays, PM2.5 concentrations greatly influence indoor air quality in subways and threaten passenger and staff health because PM2.5 contains heavy metal elements, but can also carry toxic and harmful substances...

Visually sorting waste wood — an exploratory study

2021 ◽  
pp. 1-4
Author(s):  
Anna Schild ◽  
Julie Cool
Keyword(s):  
Mass Spectrometry ◽  
Heavy Metal ◽  
Exploratory Study ◽  
Inductively Coupled Plasma ◽  
Wood Preservatives ◽  
Waste Wood ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements

Waste wood collected at the Vancouver landfill has been sorted based on the visibility of coatings, paints, and the green colorization of wood typically associated with wood preservatives. The sorted material was then ground and tested with an inductively coupled plasma mass spectrometry (ICP–MS) for heavy metal elements that are toxic or harmful to humans and (or) the environment. Results indicated that wood preservatives were not visually detectable but paints and coatings were. Therefore, the study demonstrated that visual sorting is not sufficiently accurate to distinguish between treated and clean or untreated waste wood.

Airborne environmental fine particles induce intense inflammatory response regardless of the absence of heavy metal elements

2020 ◽  
Vol 195 ◽  
pp. 110500
Author(s):  
Mariana Colaço ◽  
Alana Duarte ◽  
Mónica Zuzarte ◽  
Benilde F.O. Costa ◽  
Olga Borges
Keyword(s):  
Heavy Metal ◽  
Inflammatory Response ◽  
Fine Particles ◽  
Metal Elements ◽  
Heavy Metal Elements
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