Identification

Title

Preface to a special issue "Megacity Air Pollution Studies (MAPS)"

Abstract

Large urban areas, commonly referred to as megacities, generally consume a huge amount of energy due to the high population density along with concentrated economic activities, and the resulting environmental burden—including air pollution—is an ongoing scientific and public issue. As several common factors and drivers cause air pollution problems in urban areas, it is widely thought that the air quality trends in different cities exhibit similarities in certain aspects correlated with urban development activity and air pollution mitigation practices. However, unique characteristics in the emission, chemistry, and dispersion of air pollutants that are specific to each urban area also exist, which often reflect differing approaches to air pollution control policy. Based on this reasoning, several comprehensive studies in big megacities, mostly in North America and Europe, have been implemented extensively over the last two decades. However, the air quality is often much poorer in the megacities of developing countries, and extensive research is still needed to tackle the urgent goals of understanding the increasing complexity of air quality and identifying appropriate mitigation measures. This MAPS (Megacity Air Pollution Studies) special issue highlights recent scientific findings from megacity air-quality research in many parts of the world. It focuses primarily on the mechanisms and drivers that result in high ozone and aerosol events in megacities but also addresses the latest advances in precursor emissions inventories, chemical transformation assessments, and forecasting models with sets of field observations, including remote sensing applications.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7959mfb

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

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East bounding longitude

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Temporal reference

Temporal extent

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End position

Dataset reference date

date type

publication

effective date

2018-09-28T00:00:00Z

Frequency of update

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Conformity

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name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact