Quantifying temporal trends of atmospheric pollutants in Makkah (1997–2012)

Munir, Shahid; Habeebullah, Turki M.; Seroji, Abdulaziz R.; Gabr, Safwat S.; Mohammed, Atif M. F.; Morsy, Essam A.

doi:10.1016/j.atmosenv.2013.05.075

Cited by 54 publications

(35 citation statements)

References 27 publications

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“…The same research group at the Hajj Research Institute utilized a part of that long-term data series and investigated the intercorrelation between the measured air quality parameters (Habeebullah (2013) during November 2011 and JanuaryAugust 2012. A very similar study was also published by the same research group where they presented the same air quality parameters with a model simulation for the time period November 2011-July 2012 (Munir et al, 2013a).…”

Section: Introductionsupporting

confidence: 57%

Particulate Matter and Number Concentrations of Particles Larger than 0.25 µm in the Urban Atmosphere of Jeddah, Saudi Arabia

Hussein

Alghamdi

Khoder

et al. 2014

Aerosol Air Qual. Res.

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We investigated the temporal variation of PM and aerosol particle number concentration (TC, D p 0.25-32 µm) during year 2012 in Jeddah city. We focused on the daily patterns, wind sector analysis, and the effect of ambient conditions. The daily median values of the PM 10 rarely exceeded 200 µg/m 3 . The PM 2.5 and PM 1 concentrations showed similar temporal variation with fraction of 39.5% and 19.3% of the PM 10 , respectively. The daily median values of the TC were generally below 500 cm -3 but showed three distinguished peaks (as high as 950 cm -3 ) occurred during late September-early November, which was during the time of the Hajj season. These peaks were also observable in the PM 2.5 and PM 1 . The PM 10 daily pattern on workdays and Thursdays were similar with a pronounced peak as high as 90 µg/m 3 during the morning time. The PM 2.5 and PM 1 daily patterns were also similar to those of the PM 10 , especially on Thursdays and workdays, but with lower concentrations. The TC daily pattern was almost the same on all days showing high concentrations (between 150 and 200 cm -3 ) during the first half of the day. The daily patterns of the TC were similar to those of the PM 1 , especially on Workdays and Fridays. The emissions from the industrial city (located in the south of Jeddah) are the main source of PM in Jeddah. During the sea breeze that occurred in the afternoon accompanied low concentrations of PM and TC concentrations. The PM concentrations showed the famous U-shape with respect to the wind speed, whereas the TC was around 150 cm -3 when the wind speed was over 3 m/s. In general, the TC had a different behaviour with respect to the other ambient conditions than that of the PM concentrations, especially PM 10 .

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Section: Introductionsupporting

confidence: 57%

Particulate Matter and Number Concentrations of Particles Larger than 0.25 µm in the Urban Atmosphere of Jeddah, Saudi Arabia

Hussein

Alghamdi

Khoder

et al. 2014

Aerosol Air Qual. Res.

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“…In this paper, we show that O 3 temporal variation was lower than NO x , similar to Munir et al [4] and Adame et al [37]. In the years 2005-2012 percentiles Q30, Q60 and Q90 of O 3 levels were lower than in Saudi Arabia [4], which can be attributed to differences in climate.…”

Section: Discussionsupporting

confidence: 63%

“…In urban areas, these reactions are mainly based on the oxidation of nitrogen compounds derived from anthropogenic sources, mainly road transport [3][4][5]. At ground level, ozone is one of the major components of the 'photochemical smog' observed mainly in summer in large cities and industrial areas around the world [6,7].…”

Section: Introductionmentioning

confidence: 99%

Ozone Concentration at Ground Level Depending on the Content of NO_x and Meteorological Conditions

Kalbarczyk

Niedźwiecka-Filipiak

et al. 2015

Ecological Chemistry and Engineering S

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This study analyzed the temporal variation of tropospheric ozone (O3) in Poznan (midwestern Poland) on the basis of data collected from a State Environmental Monitoring air quality assessment station. The aim was to investigate the distribution and variation of O3 levels and to assess the relationship with nitrogen oxides (NOx) and meteorological conditions. These relationships were assessed by multiple regression analysis and cluster analysis. The O3 levels showed a high annual, seasonal and daily volatility, and were significantly influenced by meteorological conditions and NOx levels. High O3 levels were accompanied by above-average levels of radiation (Rad), air temperature (Ta) and wind speed (Ws), together with below-average values of NOx and humidity (Rh). Atmospheric pressure (Ph) had an ambiguous effect on O3 levels.

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“…This is a continuous monitoring station and measures the concentrations of several air pollutants, including SO 2 , CO, PM 10 , NOx, NO, NO 2 , and O 3 , and meteorological variables (e.g., wind speed and temperature). The monitoring stations were previously described by Munir et al, [6]. Air pollutant concentrations are expressed in microgram per cubic meter (µg/m 3 ), except CO which is expressed in milligram per cubic meter (mg/m 3 ).…”

Section: Methodsmentioning

confidence: 99%

“…High levels of particulate matter with aero-dynamic diameter of 10 micron or less (PM 10 ) in Makkah, especially during the Hajj period have been previously reported by several authors [2]- [6]. The reasons for the high PM 10 concentrations are most probably high volume of traffic, construction work, re-suspension of particles, windblown dust and sand particles and geographical conditions (Arid Regions) [5].…”

Section: Introductionmentioning

confidence: 93%

The Interaction between Air Quality and Meteorological Factors in an Arid Environment of Makkah, Saudi Arabia

Habeebullah¹,

Makkah²,

Ksa³

et al. 2015

IJESD

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Quantifying temporal trends of atmospheric pollutants in Makkah (1997–2012)

Cited by 54 publications

References 27 publications

Particulate Matter and Number Concentrations of Particles Larger than 0.25 µm in the Urban Atmosphere of Jeddah, Saudi Arabia

Particulate Matter and Number Concentrations of Particles Larger than 0.25 µm in the Urban Atmosphere of Jeddah, Saudi Arabia

Ozone Concentration at Ground Level Depending on the Content of NO_x and Meteorological Conditions

The Interaction between Air Quality and Meteorological Factors in an Arid Environment of Makkah, Saudi Arabia

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Quantifying temporal trends of atmospheric pollutants in Makkah (1997–2012)

Cited by 54 publications

References 27 publications

Particulate Matter and Number Concentrations of Particles Larger than 0.25 µm in the Urban Atmosphere of Jeddah, Saudi Arabia

Particulate Matter and Number Concentrations of Particles Larger than 0.25 µm in the Urban Atmosphere of Jeddah, Saudi Arabia

Ozone Concentration at Ground Level Depending on the Content of NOx and Meteorological Conditions

The Interaction between Air Quality and Meteorological Factors in an Arid Environment of Makkah, Saudi Arabia

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Product

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Ozone Concentration at Ground Level Depending on the Content of NO_x and Meteorological Conditions