نتایج جستجو برای: pollutant
تعداد نتایج: 20272 فیلتر نتایج به سال:
In practice, in addition to the intervals xi = x i ; xi ] of possible values of inputs x1; : : : ; xn, we sometimes also know their means Ei. For such cases, we provide an explicit exact (= best possible) upper bound for the mean of the product x1 : : : xn of positive values xi. 1 Formulation of the Problem Case study: practical problem from ecology. In many ecological applications (see, e.g., ...
Both nitrogen dioxide (NO2) and ozone (O3) are powerful oxidants in ambient air that are intimately linked through atmospheric chemistry and which continuously interchange over very short timescales. Based upon atmospheric chemistry alone, there is a strong, a priori, reason for considering O3 and NO2 together in epidemiological studies, rather than either of the two pollutants separately in si...
It has been well established that both meteorological attributes and air pollution concentrations affect human health outcomes. We examined all cause nonaccident mortality relationships for 28 years (1981-2008) in relation to air pollution and synoptic weather type (encompassing air mass) data in 12 Canadian cities. This study first determines the likelihood of summertime extreme air pollution ...
The harmful effect of the noise on human health has been known for many decades and it's first harmful effect on the hearing came to be known in the year 1831. According to the nature of the work, this di- sease was called Boiler Maker's deafness. Noise due to the industrial machineries is one of the main cause of Environmental Poliution, and among the different industreis, Textile industry i...
Limiting global temperature increases to 1.5 °C while respecting ‘the right health’ requires substantial reductions in Short-Lived Climate Pollutants (SLCPs), including methane, black carbon and hydrofluorocarbons, co-emitted air pollutants. This study evaluates the inclusion of SLCP pollutant mitigation within Nationally Determined Contributions (NDCs) that were submitted between 2015 2022. Be...
the effects of unleaded gasoline and unleaded gasoline–ethanol blends on engine performance and pollutant emissions were investigated experimentally in a single cylinder, four-stroke spark-ignition engine with variable engine speeds (2600–3500 rpm). four different blends on a volume basis were applied. these are e0 (0% ethanol + 100% unleaded gasoline), e3 (3% ethanol + 97% unleaded gasoline), ...
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