Sentences with phrase «photochemical smog»
Photochemical smog is a type of air pollution that occurs when sunlight reacts with harmful chemicals, like car emissions, in the atmosphere. This reaction forms a thick smog that can be seen as a haze and creates health problems for people and the environment. Full definition
Likewise, nitrogen oxides and sulfur dioxide react with other chemicals in the atmosphere under the influence of intense sunshine to form ozone, which is a main ingredient of photochemical smog.
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The findings are timely because the Environmental Protection Agency is developing stricter regulations for ground - level ozone, a primary component in photochemical smog.
Air Pollution and Materials • Increased acid deposition • Increased photochemical smog • Degradation of outdoor paints and plastics Fig, p. 488 Global Warming • Accelerated warming because of decreased ocean uptake of CO2 from atmosphere by phytoplankton and CFCs acting as greenhouse gases
First they confuse aerosols with photochemical smog.
Photochemical Smog Demonstration, Jesse Miller, Chemist Corner, 8/20/2008.
Moral: Better do discuss photochemical smog.
Smog air pollution is a significant health risk to those living in built up areas and despite some measures to improve the situation, photochemical smog continues to pose noticable health risks to city dwellers.
Oxidized nitrogen becomes part of photochemical smog and ozone and is a major component of the infamous PM 2.5, particulate matter less than 2.5 microns in diameter that decreases visibility and is harmful when inhaled because it can penetrate deeply into the lungs.
Scientists who look at the various chemicals floating around during bad air - quality days have pinpointed the reduction in peroxyacetyl nitrate (PAN), a «secondary pollutant present in photochemical smog», to explain why LA's pollution isn't quite as irritant to the eyes as before.
The atmospheric chemistry that leads to photochemical smog and climate - active aerosols requires the presence of volatile organic compounds (VOCs)(1, 2).
VOCs, sunlight and nitrogen oxides react to produce high levels of ozone and photochemical smogs.
Recent studies suggest that aircraft generate their own version of the photochemical smog that motor vehicles create at ground level.
That haze appears to be a photochemical smog created when sunlight drives reactions between methane and other molecules.
· Wide - scale deployment of a mix of low - carbon electricity generation technologies, as foreseen in mitigations scenarios such as the IEA's Blue Map Scenarios, helps to stabilize or reduce pollution such as eutrophication, acidification, particulates, photochemical smog, and toxicity.
While complaints about air quality in the Los Angeles Basin date back centuries, research established more than 50 years ago that vehicle emissions were the primary cause of photochemical smog.
In fact its pollution was a particular kind, photochemical smog: it was not the aerosols Tamino is referring to.
photochemical smog a mix of photochemical oxidant air pollutants produced by the reaction of sunlight with primary air pollutants
Photochemical smog - A mix of photochemical oxidant air pollutants produced by the reaction of sunlight with primary air pollutants, especially hydrocarbons.
Often referred to as «photochemical smog».
The presence of a brown - coloured haze over urban areas is an indication of photochemical smog, and among its side effects are people experiencing breathing difficulties and asthma attacks.