Sentences with phrase «concentrations of air pollutants»

Heavy concentrations of air pollutants have considerable impact on temperature, visibility, and precipitation in and around cities.

The study was conducted in Jena, Germany, a city with 100,000 residents and only a few days over the last several years during which concentrations of some air pollutants exceeded EU daily limits.

Concentrations of air pollutants one, two, and three days before heart attack symptoms were compared to concentrations in the previous and following week.

Smog is a strongly increased concentration of air pollutants.

Specifically, the group plans to use Cook County's air monitoring network, traffic data and meteorological data to learn how the concentration of air pollutants in the city may change under future — and most likely more congested — traffic scenarios.

Trends in bulk deposition and atmospheric concentration of air pollutants in the Finnish Integrated Monitoring catchment Pallas during 1992 — 2012.

Another study has found that idling vehicles do create serious pollution: «The concentration of air pollutants near schools may significantly exceed community background levels, particularly in the presence of idling school buses.»

Not exact matches

The impact of rapid increases in air pollutants on heart health may be at least as important as absolute concentrations.»

«These releases could lead to a higher short - term concentration of certain pollutants in the air, soil and surface water bodies where the meltwater runs to,» worries Nazarenko.

Average concentrations of two major air pollutants from 2000 to 2012 varied by U.S. region.

A study published in January in Environmental Health Perspectives reported that daily deaths over a decade in metropolitan Boston peaked on days when concentrations of three common air pollutants were at their highest, even though those levels would currently satisfy the U.S. Environmental Protection Agency.

An automated gas chromatography apparatus then extracts a puff of air from each bottle and quantifies the type and concentration of pollutants released.

Metropolitan areas with the large populations and elevated concentrations of one or both air pollutants, they wrote, would realize the biggest improvements in public health by meeting the more protective standards.

Lead report author Kevin Cromar, PhD, director of the Air Quality Program at the Marron Institute and associate professor of population health and environmental medicine at the NYU School of Medicine, added, «Metropolitan areas and states with large populations and elevated concentrations of one or both air pollutants would realize the biggest improvements in public health by meeting the more protective standards.&raqAir Quality Program at the Marron Institute and associate professor of population health and environmental medicine at the NYU School of Medicine, added, «Metropolitan areas and states with large populations and elevated concentrations of one or both air pollutants would realize the biggest improvements in public health by meeting the more protective standards.&raqair pollutants would realize the biggest improvements in public health by meeting the more protective standards.»

Pallas also serves as one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, O3 and other air pollutants as required by the European legislation on ambient air quality assessment and management.

«The increased use of clean energy sources that do not emit greenhouse gases or conventional air pollutants... would be doubly beneficial to global food security, as they do not contribute to either climate change or increased surface - ozone concentrations,» she said.

Pallas is one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, ozone and other air pollutants, as required by the European legislation on ambient air quality.

Oct. 3, 2017 - A recent study by Lawrence Livermore National Laboratory (LLNL) scientists and collaborators is the first to use an ensemble of global chemistry climate models to estimate death rates from air pollution caused by the impact of climate change on pollutant concentrations.

The Environmental Protection Agency has found indoor air can be filled with more pollutants than outdoor air, which can ultimately lead to symptoms of «sick building syndrome»: tiredness, fogginess, and lack of concentration.

Indoor air quality is defined by the concentrations of various pollutants, including carbon dioxide (CO2), volatile organic compounds (VOCs), moulds, dusts and airborne fungi.

Image: IES Knowledge is Power The European Environment Agency and the European Commission have release new set of 32 online maps that show where air pollutants are present in high concentrations.

Pallas is one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, ozone and other air pollutants, as required by the European legislation on ambient air quality.

If carbon dioxide is indeed a pollutant when present in excessive concentrations in the atmosphere — which the EPA's 2009 Endangerment Finding for carbon says that it is — then by law and by past precedent the Clean Air Act is the appropriate means for controlling all of America's own greenhouse gas emissions, regardless of their source.

Moonbats: «Jacobson found that domes of increased carbon dioxide concentrations — discovered to form above cities more than a decade ago — cause local temperature increases that in turn increase the amounts of local air pollutants, raising concentrations of health - damaging ground - level ozone as well as particles in urban air.»

Part of the absorbed radiation warms the surrounding air, a process that tends to stabilize the air over a city, which in turn increases the probability of higher pollutant concentrations.

Pollutants have altered on a global scale the carbon dioxide content of the air and the lead concentrations in ocean waters and human populations.

Reductions in emissions of black carbon since the late 1980s, mostly from diesel engines as a result of air quality programs, have resulted in a measurable reduction of concentrations of global warming pollutants in the atmosphere, according to a first - of - its - kind study — which Berkeley Lab participated in — examining the impact of black carbon on California's climate.

The main purpose of the first phase (development of the RCPs) is to provide information on possible development trajectories for the main forcing agents of climate change, consistent with current scenario literature allowing subsequent analysis by both Climate models (CMs) and Integrated Assessment Models (IAMs).1 Climate modelers will use the time series of future concentrations and emissions of greenhouse gases and air pollutants and land - use change from the four RCPs in order to conduct new climate model experiments and produce new climate scenarios as part of the parallel phase.

Sacramento — Reductions in emissions of black carbon since the late 1980s, mostly from diesel engines as a result of air quality programs, have resulted in a measurable reduction of concentrations of global warming pollutants in the atmosphere, according to a first - of - its - kind study examining the impact of black carbon on California's climate.

During extreme heat events, nighttime temperatures in the region's big cities are generally several degrees higher28 than surrounding regions, leading to increased heat - related death among those less able to recover from the heat of the day.36 Since the hottest days in the Northeast are often associated with high concentrations of ground - level ozone and other pollutants, 37 the combination of heat stress and poor air quality can pose a major health risk to vulnerable groups: young children, the elderly, and those with pre-existing health conditions including asthma.29 Vulnerability is further increased as key infrastructure, including electricity for potentially life - saving air conditioning, is more likely to fail precisely when it is most needed — when demand exceeds available supply.

Pace the phrase «any air pollutant,» everything in § 115 points to it being meant to apply only to NAAQS pollutants, i.e., those for which EPA has established a «National Ambient Air Quality Standard»: a numerical value representing the appropriate atmospheric concentration of ozone, particulate matter, etair pollutant,» everything in § 115 points to it being meant to apply only to NAAQS pollutants, i.e., those for which EPA has established a «National Ambient Air Quality Standard»: a numerical value representing the appropriate atmospheric concentration of ozone, particulate matter, etAir Quality Standard»: a numerical value representing the appropriate atmospheric concentration of ozone, particulate matter, etc..

Since a sustainable future based on the continued extraction of coal, oil and gas in the «business - as - usual mode» will not be possible because of both resource depletion and environmental damages (as caused, e.g., by dangerous sea level rise) we urge our societies to -LSB-...] Reduce the concentrations of warming air pollutants (dark soot, methane, lower atmosphere ozone, and hydrofluorocarbons) by as much as 50 % [and] cut the climate forcers that have short atmospheric lifetimes.

«Carbon dioxide in the air we breathe has no adverse health effects, in contrast to carbon monoxide and high concentrations of the genuine pollutants listed in the Clean Air Act, the source of the EPA's authority to regulate air pollutants.&raqair we breathe has no adverse health effects, in contrast to carbon monoxide and high concentrations of the genuine pollutants listed in the Clean Air Act, the source of the EPA's authority to regulate air pollutants.&raqAir Act, the source of the EPA's authority to regulate air pollutants.&raqair pollutants.»

The total CO2 equivalent (CO2 - eq) concentration of all long - lived GHGs is currently estimated to be about 455 ppm CO2 - eq, although the effect of aerosols, other air pollutants and land - use change reduces the net effect to levels ranging from 311 to 435 ppm CO2 - eq (high agreement, much evidence).

Pallas also serves as one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, O3 and other air pollutants as required by the European legislation on ambient air quality assessment and management.

The ambient air pollutant concentrations have been decreasing for decades and are going to keep decreasing for the foreseeable future because of existing non-GHG-related regulations.

This means that just by targeting these dirty old clunkers, badly tuned rust - buckets, and street racers, we could make a significant impact on air quality, especially in urban areas where the density of vehicles gets high enough for pollutant concentrations to reach dangerous levels.

High concentrations of the major air pollutants are associated with respiratory problems such as coughs, bronchitis, asthma and, in severe cases, developmental problems in children, and even death.