Good Science, Bad Regulation, and Toxic Risk Assessment
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Health Risk Assessment of Metals in Street Dust of Karaj City in 2018
Background: In the last two decades, air pollution has become a serious problem, leading to a variety of harmful health effects. Street dust is a complex combination of pollutants from different sources, which can be a good indicator of air quality in the urban environment. So, this study was conducted to assess the health risk of toxic metals associated with street dust and identify their emis...
متن کاملRisk assessment of hazardous impacts on urbanization and industrialization activities based upon toxic substances
A risk assessment study was conducted to predict the expected hazardous influence on the ecosystem resulted from urbanization and industrialization activities at Helwan area, Egypt. To achieve these goals, soils, plants and water samples were collected from Helwan area, and their total concentrations of inorganic contaminants (Cd, Cr, Co, Cu, Fe, Mn, Ni, Pb, and Zn) and organic pollutants; such...
متن کاملNutrient Interaction and Health Risk Assessment of Cereal Grains on Nigerian’s Markets
Background: Cereals are the most staple foods in human diet and the main components of the daily diet. This work was designed to determine the level of essential and non-essential elements, the in vitro bioavailability, interrelationship, and associated health risk in consumed cereal grains in Nigeria to assess their safety and wholesomeness. Methods: The contents of phytate, oxalate, and some...
متن کاملTo Study The Effect of Investor Protection on Future Stock Price Crash Risk
Managers are responsible for providing financial statements and they might try to make a good picture of their firm's conditions. Therefore, they try to delay the disclosure of bad news and release the good news as soon as possible. The ten-dency of managers toward hiding bad news increases the stock price crash risk. The protection of investor is one of the factors that can prevent from fallin...
متن کاملRisk assessment and mitigation measures on the heavy metal polluted water and sediment of the Kolleru Lake in Andhra Pradesh, India
The Kolleru Lake is a famous Ramsar wetland of international significance. In this study heavy metal contents in water and sediment samples are reported. It is found that certain potentially toxic metal ions like chromium (4.5-80 µg/L), copper (1-20 µg/L), manganese (1-313 µg/L) and zinc (1.2-57 µg/L) are present in variable quantities in the lake water. When normalized with respect to concentr...
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