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Calcium Cyanamide

Calcium cyanamide is a calcium compound with the molecular formula CaCN2. It is formed when calcium carbide reacts with nitrogen. [1]

Calcium cyanamide occurs as glistening, hexagonal crystals. Pure calcium cyanamide is non-volatile and non-combustible. However, commercial grades may contain small amounts of calcium carbide, which will decompose in water to produce acetylene which is […]

Simulating real-life exposures to uncover possible risks to human health: A proposed consensus for a novel methodological approach

In real life, consumers are exposed to complex mixtures of chemicals via food, water and commercial products consumption. Since risk assessment usually focuses on individual compounds, the current regulatory approach doesn’t assess the overall risk of chemicals present in a mixture. This study evaluated the cumulative toxicity of mixtures of different classes of pesticides […]

Documenting the kinetic time course of lambda-cyhalothrin metabolites in orally exposed volunteers for the interpretation of biomonitoring data

Lambda-cyhalothrin is a pyrethroid pesticide largely used in agriculture. Exposure assessment can be performed by measuring key urinary metabolites. For a proper use of biomonitoring data, it is however important to gain information on the toxicokinetics of these key biomarkers of exposure. A human volunteer study was performed to document the plasma and urinary […]

Effective Message Elements for Disclosures about Chemicals in Cigarette Smoke

Cigarette smoke contains at least 93 chemicals or “constituents” that the Food and Drug Administration (FDA) has identified as harmful or potentially harmful to human health. In this study, the authors sought to identify which constituent disclosure message elements are most effective in discouraging people from smoking. Three hundred eighty-eight current smokers ages 18 […]

Simultaneous determination of selected hormones, endocrine disruptor compounds, and pesticides in water medium at trace levels by GC-MS after dispersive liquid-liquid microextraction

The need to enhance food safety has led to major advancements in pesticide productions, and though many benefits have been gained, environmental contamination has also risen from these chemicals that tend to persist in the environment. Some pesticides, together with other chemicals commonly called endocrine disruptor compounds, block the receptor sites of hormones or […]

Phenol concentrations during childhood and subsequent measures of adiposity among young girls

Phenolic compounds represent a class of environmental chemicals with potential endocrine disrupting capabilities. The present study investigated longitudinal associations of childhood exposures to phenols, from both man-made and natural sources, and subsequent measures of adiposity among girls enrolled in The Breast Cancer and Environment Research Program, 2004-2007. Baseline (ages 6-8 years) urinary concentrations were […]

Cancer incidence among Finnish male cobalt production workers in 1969-2013: a cohort study.

There is inadequate evidence for the carcinogenicity of cobalt and cobalt compounds in humans. Consequently, the International Agency for Research on Cancer (IARC) has evaluated cobalt metal without tungsten carbide as possibly carcinogenic to humans (Group 2B). The aim of the study was to assess the risk of cancer among workers employed in a […]

Wood smoke exposure of Portuguese wildland firefighters: DNA and oxidative damage evaluation

Portugal is among the European Union countries most devastated by forest fires each year. In the last three decades, more than 3.8 million hectares of forest were burned. Wildland firefighters are exposed to a variety of hazards, including many toxic combustion products that may lead to deleterious health effects. Epidemiological studies showed a positive […]

Effects of Occupational Silica Exposure on OXIDATIVE Stress and Immune System Parameters in Ceramic Workers in TURKEY

Silica is the second most common element after oxygen, and therefore, exposures to crystalline silica dust occur in a large variety of occupations such as metal foundries, constructions, and ceramic, quarry, and pottery industries. Since crystalline silica exposure has been linked with silicosis, lung cancer, and other pulmonary diseases, adverse effect attributed to this […]

Cancer risks in a population-based study of 70,570 agricultural workers: results from the Canadian census health and Environment cohort (CanCHEC)

Agricultural workers may be exposed to potential carcinogens including pesticides, sensitising agents and solar radiation. Previous studies indicate increased risks of hematopoietic cancers and decreased risks at other sites, possibly due to differences in lifestyle or risk behaviours. In the present study, the authors present findings from CanCHEC (Canadian Census Health and Environment Cohort), […]