Compliance with the annual NO2 air quality standard in Athens. Required NOx levels and expected health implications

Chaloulakou, A.; Mavroidis, Ilias; Gavriil, I.

doi:10.1016/j.atmosenv.2007.09.067

Cited by 90 publications

(41 citation statements)

References 22 publications

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“…The present investigation resulted in an average [NO 2 ] to [NO x ] relationship very similar to that presented by Carslaw and Beevers (2005) for London, and also (at least for low to moderately high [NO x ]) to that obtained by Chaloulakou et al (2008) in Athens. Thus, this kind of relationship seems to be relatively invariant for different urban areas in Europe.…”

Section: Discussionsupporting

confidence: 84%

Characteristics of NO2 Pollution in the City of Gothenburg, South-West Sweden—Relation to NO x and O3 Levels, Photochemistry and Monitoring Location

Pleijel

Klingberg

Bäck

2008

Water Air Soil Pollut: Focus

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Concentrations of NO 2 , NO, and O 3 from a rooftop monitoring station in Gothenburg, Sweden (2002 were analysed to characterise NO 2 pollution. [NO 2 ] was shown to correlate strongly and non-linearly with [NO x ] (NO x =NO+NO 2 ), in line with observations in other cities. The [NO 2 ] to [NO x ] fraction fell initially with increasing [NO x ]. At [NO x ] levels >200 ppb, the decline in [NO 2 ]/[NO x ] with increasing [NO x ] levelled out and [NO 2 ]/[NO x ] converged towards approximately 0.15-0.16, independent of [NO x ]. Data from a traffic route site showed the same pattern. This value of [NO 2 ]/[NO x ] at high [NO x ] can be interpreted as the NO 2 fraction of the NO x emissions from vehicle exhaust. Situations with high NO x pollution and minimum [NO 2 ]/[NO x ] were always associated with [O 3 ] close to zero. Plotting [Ox] (Ox=NO 2 +O 3 ) vs. [NO x ] provided a strong linear correlation for situations dominated by local pollution ([NO]/[NO 2 ]>1). The slope of the regression, a measure of the primary NO 2 fraction in NO x emissions, was 0.13 during the day and 0.14 during the night. With stronger winds, the rooftop monitoring station became more similar, in terms of NO 2 pollution, to a city street site and a traffic route site, although [NO 2 ] was almost always higher at the street/traffic route locations. The EU standard for the annual average of [NO 2 ] (40 μg m −3 ) was exceeded, while the hourly standard (200 μg m −3 , not to be exceeded more than 18 times per year by 2010) was not exceeded at any of the sites.

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Section: Discussionsupporting

confidence: 84%

Characteristics of NO2 Pollution in the City of Gothenburg, South-West Sweden—Relation to NO x and O3 Levels, Photochemistry and Monitoring Location

Pleijel

Klingberg

Bäck

2008

Water Air Soil Pollut: Focus

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“…In contrast, the NO 2 concentrations in NRW stagnate in the same period at about 23 ppbv. This trend has been also observed nationwide [3] and in other European countries [4][5][6][7].…”

Section: Introductionsupporting

confidence: 52%

Primary NO2 emissions and their impact on air quality in traffic environments in Germany

et al. 2012

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Background: The decreasing NO X concentrations at urban measurement stations in Germany are in agreement with the reduction of NO X emissions from vehicular traffic. However, the measured NO 2 concentrations are stagnating nationwide. In 2010, at more than the half of the urban measurement stations in Germany, annual mean values for NO 2 exceeded the new Europe-wide limit value of 40 μg/m 3 (20 ppbv) NO 2 . Similar findings are reported from many other member states of the European Union.

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“…NOx waste is emitted into the atmosphere from both stationary and mobile combustion sources, leading to the air pollution issues such as acid rain and photochemical smog [4][5][6]. Moreover, NOx causes a wide variety of acute and chronic impact to human health such as pneumonia, respiratory diseases, damage to lung tissue, and premature death [7].…”

Section: Introductionmentioning

confidence: 99%

NOx abatement from stationary emission sources by photo-assisted SCR: Lab-scale to pilot-scale studies

Nguyen

Lasek

et al. 2016

Applied Catalysis A: General

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Compliance with the annual NO2 air quality standard in Athens. Required NOx levels and expected health implications

Cited by 90 publications

References 22 publications

Characteristics of NO2 Pollution in the City of Gothenburg, South-West Sweden—Relation to NO x and O3 Levels, Photochemistry and Monitoring Location

Characteristics of NO2 Pollution in the City of Gothenburg, South-West Sweden—Relation to NO x and O3 Levels, Photochemistry and Monitoring Location

Primary NO2 emissions and their impact on air quality in traffic environments in Germany

NOx abatement from stationary emission sources by photo-assisted SCR: Lab-scale to pilot-scale studies

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