Sentences with phrase «estimates of air quality»

Not exact matches

The EPA has long been involved in pollution reduction and air quality improvement by testing and creating alternatives to engine idling of the 15.5 million trucks estimated to be operating in the U.S.

The approval follows a 12 - month environmental assessment of the project that looked at the adequacy of emissions estimates and air quality modelling, cumulative air emissions, potential health impacts and worker health issues.

The investigators estimated coarse PM (PM 10 - 2.5) in each zip code using measurements of particulate matter collected in the EPA's Air Quality System database from Jan. 1, 2009, through Dec. 31, 2010.

But while wildfires are estimated to contribute about 18 percent of the total PM2.5 emissions in the U.S., many questions remain on how these emissions will affect human populations, including how overall air quality will be affected, how these levels will change under climate change, and which regions are to most likely to be impacted.

It is estimated that the country is losing some 8 percent of its wealth each year to pollution, with the toll including everything from crops destroyed by acid rain to spiraling health costs due to poor air and water quality.

The World Health Organization (WHO) estimates that 92 % of the world's population live in areas with inadequate outdoor air quality, and this pollution contributes to 1 out of every 8 deaths.

Supporters of such a plan estimate (PDF) that each $ 1 billion in school - construction work would generate up to 10,000 jobs while helping to replace or refurbish aging school facilities and protect students and school staff from poor air quality, mold, energy inefficiencies, and more.

These are conservatives estimates for the health benefits, because they only calculate reduced mortality due to increased physical activity, and do not the health benefits of improved air quality.

The purpose of the SUPR 2 calculator is to provide policymakers and stakeholders with a rough estimate of some of the costs and benefits of different policies and technologies that could help a state meet its air quality goals.

COBRA uses a reduced form air quality model, the Source - Receptor (S — R) Matrix, to estimate the effects of emission changes on ambient PM.

Secondly, BenMAp «estimates the number and economic value of heath impacts resulting from changes in air quality — specifically, ground - level ozone and fine particles but note that the COBRA impacts are solely based on particulate matter.

Abt Associates used a three - step analytic process to estimate the impacts on air quality and public health resulting from implementation of the RGGI program from 2009 to 2014.

In each of these steps they used specific modeling tools and datasets to estimate the incremental impacts of RGGI on the following variables: generation (in megawatt - hours (MWh)-RRB- by power plants, air pollution emissions, air quality, and public health.

Nearly one half of all Americans — an estimated 150 million — live in areas that don't meet federal air quality standards.

The plan estimates that «every fully vegetated acre of green infrastructure would provide total annual benefits of $ 8.5 in reduced energy demand, $ 166 in reduced CO2 emissions, $ 1,044 in improved air quality, and $ 4,725 in increased property value.»

In China, it is estimated that fewer deaths from improved air quality could lead to savings of nearly $ 340 billion dollars by 2030 - four times the cost of meeting China's climate goals.

«As part of the CAMS service, we estimate to which extent wildfire emissions influence the air quality by incorporating the Global Fire Assimilation System (GFAS) data into our air quality forecasts,» says Parrington.

It supports EPA efforts and activities to monitor air quality levels, estimate population exposure to air pollutants, examine the effects of air pollution on public health, track progress in improving air quality and reducing associated risks, and provide models, tools, and technical guidance to states.