Advertisement

Topics

Reduction of particulate matter concentrations by local removal in a building courtyard: Case study for the Delhi American Embassy School.

08:00 EDT 17th May 2019 | BioPortfolio

Summary of "Reduction of particulate matter concentrations by local removal in a building courtyard: Case study for the Delhi American Embassy School."

Exposure to particulate matter (PM) is strongly linked to human morbidity and mortality, where higher exposure entails higher all-cause daily mortality and increased long-term risk of cardiopulmonary mortality. The objective of this study is to demonstrate how and to what extent the local removal of PM can lead to reduced exposure for the children and teachers in the naturally ventilated courtyard of the American Embassy School (AES) high school building in Delhi. The study is performed by computational fluid dynamics (CFD) with the 3D steady Reynolds-averaged Navier-Stokes (RANS) equations in combination with the realizable k-ε turbulence model on a very high resolution grid. First, CFD validation is performed using wind-tunnel experiments of the flow pattern in and above a generic single street canyon. Next, the case study is conducted where four commercially available electrostatic precipitation (ESP) units are installed at different positions inside the courtyard and the resulting performance is evaluated. PM dispersion is modeled with an Eulerian advection-diffusion equation. It is shown that the best ESP positions yield overall volume-averaged PM concentration reductions up to 34.1% in the courtyard's corridors, demonstrating the proposed mitigation strategy to be effective. Perspectives for further reduction of the PM concentrations and the related reduction of health risks are discussed.

Affiliation

Journal Details

This article was published in the following journal.

Name: The Science of the total environment
ISSN: 1879-1026
Pages: 657-680

Links

DeepDyve research library

PubMed Articles [19335 Associated PubMed Articles listed on BioPortfolio]

Removal of fine particulate matter (PM) via atmospheric humidity caused by evapotranspiration.

Reduction of particulate matter (PM) has emerged as one of the most significant challenges in public health and environment protection worldwide. To address PM-related problems and effectively remove ...

Fine-resolution mapping of particulate matter concentration in urban areas and population exposure analysis via dispersion modeling: a study in Daejeon, South Korea.

To deliver accurate particulate matter information to citizens, a detailed particulate matter dispersion model including factors such as land use and meteorological information was developed and used ...

Urban vegetation and particle air pollution: Experimental campaigns in a traffic hotspot.

This work presents the main results of two experimental campaigns carried out in summer and winter seasons in a complex pollution hotspot near a large park, El Retiro, in Madrid (Spain). These campaig...

Fine and ultrafine particle exposure during commuting by subway in Vienna.

Mass concentrations of particulate matter (PM, PM, PM), lung deposited surface area and particle number concentrations were measured for the first time in all Viennese subway lines inside cabins and i...

Effect of torrefaction on rice straw physicochemical characteristics and particulate matter emission behavior during combustion.

In this work, the effects of different torrefaction temperatures and durations on the physicochemical properties of rice straw (RS), and the emission characteristic of PM (particulate matter with aero...

Clinical Trials [7856 Associated Clinical Trials listed on BioPortfolio]

Particulate Matter, Blood Pressure, and the Sympathetic Nervous System

Healthy volunteers will be exposed to ambient air near a roadway under the conditions of with and without a facemask and their responses will be evaluated.

Air Pollution and Children With Cystic Fibrosis

1. To determine personal exposure to air pollution in children with cystic fibrosis; 2. To determine airway macrophage uptake of inhaled particulate matter in cystic fibrosis child...

Asthma & Exposure to Peaks in Particulate Air Pollution

We are testing the following two hypotheses: 1) Peaks in hourly exposures to airborne particulate matter (PM) of outdoor origin will be more closely associated with acute asthmatic respons...

Effects of Particulate Matter on the Pulmonary Function and Acute Exacerbation of COPD and Asthma

Particulate matter(PM) exposure has been shown to increase the morbidity and mobility of a variety of respiratory diseases, including COPD and asthma. This study focus on the effects of PM...

Effect of Diesel Exhaust Particulate Exposures on Endothelial Function in Humans

Objectives: This proposal addresses the overall hypothesis that ambient fine particulate matter exerts cardiovascular health effects via alteration of endothelial homeostasis, through a me...

Medical and Biotech [MESH] Definitions

Barriers used to separate and remove PARTICULATE MATTER from air.

Visible gaseous suspension of carbon and other particulate matter emitted from burning substances.

At low concentrations, this compound inhibits reduction of conventional hydrophilic electron acceptors, probably acting as a plastoquinone antagonist. At higher concentrations, it acts as an electron acceptor, intercepting electrons either before or at the site of its inhibitory activity.

Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.

A process of separating particulate matter from a fluid, such as air or a liquid, by passing the fluid carrier through a medium that will not pass the particulates. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topics

Pediatrics
Pediatrics is the general medicine of childhood. Because of the developmental processes (psychological and physical) of childhood, the involvement of parents, and the social management of conditions at home and at school, pediatrics is a specialty. With ...

Drug Discovery
Clinical Approvals Clinical Trials Drug Approvals Drug Delivery Drug Discovery Generics Drugs Prescription Drugs In the fields of medicine, biotechnology and pharmacology, drug discovery is the process by which drugs are dis...


Searches Linking to this Article