Heavy metals in indoor settled dusts in Toronto, Canada

10.32920/ryerson.14662665 ◽

2021 ◽

Author(s):

Ahmed Al Hejami

Keyword(s):

Heavy Metals ◽

Inductively Coupled Plasma ◽

Atomic Emission ◽

Indoor Environments ◽

Toxic Heavy Metals ◽

Metal Concentrations ◽

Atomic Fluorescence ◽

Inductively Coupled ◽

Greater Toronto Area ◽

Atomic Fluorescence Spectroscopy

Total concentrations of nine potentially toxic heavy metals (Ba, Cd, Cr, Cu, Hg, Mn, Ni, Pb, and Zn) in indoor settled dusts from houses, offices, classrooms, and laboratories in Greater Toronto Area, Canada were determined. Mercury concentrations were determined using cold vapor atomic fluorescence spectroscopy (CVAFS), whereas the concentrations of eight other metals were determined using inductively coupled plasma atomic emission spectroscopy (ICP-AES). The results showed that the highest level of heavy metals was in the laboratory dusts. Metal concentrations (except those for Mn and Zn) in household, office, and classroom dusts were comparable. Cd, Cr, Cu, Ni, and Zn concentrations in the laboratory dusts and Cu and Zn concentrations in household, office, and classroom dusts exceeded the Canadian Soil Guideline. Metal concentrations in the indoor dusts found in this study were, in general, consistent with those reported in literature. Among the metals studied, Cd, Cu, Hg, Pb, and Zn showed the greatest enrichment in the indoor environments relative to their crustal abundances.

Download Full-text

Simultaneous determination of heavy metals in waters by inductively-coupled plasma atomic emission spectrometry after extraction into diisobutyl ketone

Analytica Chimica Acta ◽

10.1016/s0003-2670(01)95535-7 ◽

1982 ◽

Vol 144 ◽

pp. 213-221 ◽

Cited By ~ 52

Author(s):

Akira Miyazaki ◽

Akira Kimura ◽

Kenji Bansho ◽

Yoshimi Umezaki

Keyword(s):

Heavy Metals ◽

Simultaneous Determination ◽

Inductively Coupled Plasma ◽

Atomic Emission ◽

Atomic Emission Spectrometry ◽

Emission Spectrometry ◽

Plasma Atomic Emission ◽

Plasma Atomic Emission Spectrometry ◽

Inductively Coupled

Download Full-text

Determination of Heavy Metals in Blood, Urine and Water Samples by Inductively Coupled Plasma Atomic Emission Spectrophotometer and Fluoride Using Ion-Selective Electrode

Journal of Analytical & Bioanalytical Techniques ◽

10.4172/2155-9872.1000217 ◽

2014 ◽

Vol 5 (6) ◽

Cited By ~ 6

Author(s):

JC Akan

Keyword(s):

Heavy Metals ◽

Water Samples ◽

Inductively Coupled Plasma ◽

Atomic Emission ◽

Ion Selective Electrode ◽

Plasma Atomic Emission ◽

Selective Electrode ◽

Inductively Coupled

Download Full-text

Atmospheric Deposition Of Heavy Metals In Toronto

10.32920/ryerson.14657661 ◽

2021 ◽

Author(s):

Muhammad Yousaf

Keyword(s):

Heavy Metals ◽

Atmospheric Deposition ◽

Inductively Coupled Plasma ◽

Atomic Emission ◽

Emission Spectrometry ◽

Mercury Species ◽

Plasma Atomic Emission Spectrometry ◽

Deposition Rates ◽

Inductively Coupled ◽

Glass Surfaces

Atmospheric deposition rates of heavy metals (As, Cd, Co, Cu, Hg, Mn, Ni, Pb, and Zn) were determined from July 2009−December 2010 in downtown Toronto. Atmospheric deposition samples were collected using samplers with plastic, glass and water surfaces from two rooftops (15 m and 59 m above ground) in the city core of Toronto. Mercury species were analyzed using Cold Vapor Atomic Fluorescence Spectrophotometer (CVAFS) and the rest of metals were analyzed by acid digestion combined with Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The results showed that the deposition of heavy metals was higher on water surface as compared to both the plastic and glass surfaces and that Cu, Mn, Pb and Zn showed higher deposition rates as compared to As, Cd, Co and Ni. The deposition rates were higher on Kerr Hall North (KHN) site indicating contribution from local sources. For total mercury (THg) and methyl mercury (MeHg), the deposition rates were higher on Jorgenson (JOR) site as compared to KHN site.

Download Full-text

A Comprehensive Review of Minerals, Trace Elements, and Heavy Metals in Saffron

Current Pharmaceutical Biotechnology ◽

10.2174/1389201023666220104142531 ◽

2022 ◽

Vol 23 ◽

Author(s):

Sayyed Mohammad Ali Noori ◽

Mohammad Hashemi ◽

Sajjad Ghasemi

Keyword(s):

Heavy Metals ◽

Trace Elements ◽

Inductively Coupled Plasma ◽

Chemical Elements ◽

Absorption Spectrometry ◽

Atomic Emission ◽

Emission Spectrometry ◽

Inductively Coupled ◽

Wide Range ◽

The World

Abstract: Saffron is one of the most expensive spices in the world, and its popularity as a tasty food additive is spreading rapidly through many cultures and cuisines. Minerals and heavy metals are minor components found in saffron, which play a key role in the identification of the geographical origin, quality control, and food traceability, while they also affect human health. The chemical elements in saffron are measured using various analytical methods, such as techniques based on spectrometry or spectroscopy, including atomic emission spectrometry, atomic absorption spectrometry, inductively coupled plasma optical emission spectrometry, and inductively coupled plasma mass spectrometry. The present study aimed to review the published articles about heavy metals and minerals in saffron across the world. To date, 64 chemical elements have been found in different types of saffron, which could be divided into three groups of macro-elements, trace elements, and heavy metals (trace elements with a lower gravity/greater than five times that of water and other inorganic sources). Furthermore, the chemical elements in the saffron samples of different countries have a wide range of concentrations. These differences may be affected by geographical condition such as physicochemical properties of the soil, weather and other environmental conditions like saffron cultivation and its genotype.

Download Full-text