Potential acute toxicity results demonstrate that Cd, Cr, and Pb are the major toxicants, while Zn and Cu are the minor pollutants during both seasons.
Being aware of the potential increase in emissions of major and minor pollutants, including odorous substances, we launched a series of investigations including olfactometric measurements, focused on burning wood types from Central Europe, of which several have not been tested until now.
Consequently, the lakes are considered environmental bellwethers as they can be quickly affected by even minor increases in pollutants.
"For a middle-aged guy who has had a coronary and doesn't want to have another one, the risks from pollutants are minor ones, and the omega-3 benefits him in a way that far outstrips the relatively minor risks of the pollutants," he said.
Tree stand density and crown porosity were found to be of minor importance in affecting pollutant concentration.
The state views the smelter as only a minor source of hazardous air pollutants.
Furthermore, we could not separate chronic inflammation as a feature of COPD and transit inflammation caused by minor infection or inhalation of air pollutants.
In Liverpool, there was no significant positive association between TIA and minor stroke and any of the pollutants, but negative association were observed with PM10 and NO at lag 0 and 3 respectively.
After adjusting for other pollutants, there were only minor changes in the effect estimates for PM2.5 10 for the period November through May, and the magnitudes of the estimates were similar to the corresponding estimates for the whole year (Table 4).
To explore the relationship between each ambient air pollutant and TIA or minor stroke, conditional logistic regression analysis was performed.
Major industries, including metal smelters, pulp and paper mills, petroleum product companies, foundry and steel plants, aluminum smelters, non-hydro power plants, and petrochemical companies, contain pollutant discharge estimates while minor industrial sources have no emission records.
