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Category: Technical

Posted on15/02/201228/06/2018Technical

Soil-plant-animal transfer models to improve soil protection guidelines: A case study from Portugal

by chemwatch

Food chain models are essential tools to assess risks of soil contamination in view of product quality including fodder crops and animal products. Here the…

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Posted on15/02/2012Technical

Level of Trace Elements (Copper, Zinc, Magnesium and Selenium) and Toxic Elements (Lead and Mercury) in the Hair and Nail of Children with Autism

by chemwatch

Autism is a multi-factorial pathology obsessed in children with altered levels of essential and elevated levels of toxic elements. There are also studies reporting a…

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Posted on15/02/201228/06/2018Technical

Exploration of Oxidative Stress and Inflammatory Markers in elation to Urinary Phthalate Metabolites NHANES 1999-2006

by chemwatch

Phthalate exposure has been associated with a wide range of adverse health outcomes in limited epidemiologic studies, and inflammation and oxidative stress have been hypothesised…

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Posted on15/02/2012Technical

In vitro toxicity assessment of three hydroxylated fullerenes in human skin cells

by chemwatch

Carbon fullerenes possess unique properties and their interactions with bio molecules have widespread applications. Functionalisation of fullerenes with hydroxyl groups (fullerenols) can increase the solubility…

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Posted on15/02/2012Technical

Low arsenite concentrations induce cell proliferation via activation of VEGF signalling in human neuroblastoma SH-SY5Y cells

by chemwatch

Arsenic (As) widely contaminates the environment, especially in drinking water. Although it is a known carcinogen in humans, its carcinogenic mechanism has not yet been…

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Posted on15/02/2012Technical

Needle fibres of an azo-dye mixture induce polyploidy in a Chinese hamster cell line CHL

by chemwatch

In a routine safety evaluation of chemicals included in household products, we found a mixture of azo dyes (CMBA, main component: N-[5-[(2-cyanoethyl) ethylamino]-4-methoxy-2-[(5-nitro-2,1-benzisothiazol -3-yl)azo]-phenyl]acetamide) that…

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Posted on15/02/2012Technical

Are enhanced dust explosion hazards to be foreseen in production, processing and handling of powders consisting of nano-size particles?

by chemwatch

Based on experience with powders having particle sizes down to the range 1 0.1 ím one might expect that dust clouds from combustible nm-particle powders…

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Posted on15/02/201228/06/2018Technical

Ignition and explosion of nanopowders: something new under the dust

by chemwatch

This work deals with the study of ignition and explosion characteristics of nanoparticles. It has been carried out on various powders: zinc, aluminium, carbon blacks.…

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Posted on15/02/201228/06/2018Technical

Approaches for establishing human health no effect levels for engineered nanomaterials

by chemwatch

Guidance documents for preparing risk assessments, like the guidance for the implementation of REACH, have limited focus on chemical substances in the particulate form and…

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Posted on14/02/201228/06/2018Technical

Insight into the behaviour of engineered aerosolised nanoparticles a method for understanding their fate from an aerosol release in the workplace environment

by chemwatch

In this study, the authors assessed the behaviour of aerosol nanoparticles as a function of time and of selected aerosol chamber and environmental conditions upon…

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Posted on14/02/201228/06/2018Technical

Risk evaluation of trichloroethylene exposure among workers in industry

by chemwatch

This study investigated the health risks of twenty five workers exposed to trichloroethylene in three factories. Trichloroethylene in the breathing zone of the workers was…

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Posted on14/02/201228/06/2018Technical

Occupational exposure levels to benzene in Italy: findings from a national database

by chemwatch

Benzene is classified as a human carcinogen and the association with lymphohaematopoietic cancer has been observed in many occupational epidemiological studies. This research summarised data…

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Posted on14/02/201228/06/2018Technical

Industrial and technical workers are not the only workers exposed to solvents

by chemwatch

In this study, a polemic in response to Testud et al. (Reprod. Toxicol., 2010, 30, 409-13) is given. In their paper, Testud et al. examined…

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Posted on14/02/2012Technical

Industrial and technical workers are not the only workers exposed to solvents

by chemwatch

Sylvaine Full Source: Reproductive Toxicology 2011, 32(1), 142-143 (Eng) ;

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Posted on14/02/2012Technical

Characterisation of wood dust from furniture by scanning electron microscopy and energy-dispersive X-ray analysis

by chemwatch

This study characterised and analysed form factor, elementary composition and particle size of wood dust, to understand its harmful health effects on carpenters in Quindio…

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Posted on14/02/2012Technical

Air pollution and cardiovascular hospital admissions in a medium-sized city in Sao Paulo state, Brazil

by chemwatch

This study estimated the contribution of environmental pollutants to hospital admissions for cardiovascular disease in Sao Paulo State, Brazil. A time series ecological study was…

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Posted on14/02/2012Technical

The impact of air pollution on human health: focusing on the Rudnyi Altay industrial area

by chemwatch

Air pollution in Kazakhstan is a significant environmental problem. Air pollution levels in cities and industrial centres is rather high. Highest air pollution levels were…

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Posted on14/02/2012Technical

Investigation on indoor air quality of public sites in Tainan area

by chemwatch

In this study, the authors selected 21 representative public sites for the survey of indoor air quality in Tainan area, including hospital, school, fitness centre,…

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Posted on14/02/201228/06/2018Technical

An Immunoassay To Evaluate Human/Environmental Exposure to the Antimicrobial Triclocarban

by chemwatch

This study describes a sensitive, competitive indirect ELISA for the detection of the antimicrobial triclocarban (TCC). The haptens were synthesised by derivatising the para position…

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Posted on14/02/2012Technical

Human hair as a biological indicator of heavy metal pollution in Ajmer

by chemwatch

This study investigated the heavy metal content of human hair by atomic absorption spectrophotometry. Samples were collected from 5 areas of Ajmer. The heavy metal…

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