dc.contributor.author |
Padayachi, YR
|
|
dc.contributor.author |
Thambiran, Tirusha
|
|
dc.contributor.author |
Naidoo, M
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|
dc.contributor.author |
Garland, Rebecca M
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|
dc.contributor.author |
Phala, N
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|
dc.date.accessioned |
2015-08-19T11:15:21Z |
|
dc.date.available |
2015-08-19T11:15:21Z |
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dc.date.issued |
2014-10 |
|
dc.identifier.citation |
Padayachi, Y.R., Thambiran, T., Naidoo, M., Garland, R.M. and Phala, N. 2014. An investigation of high ozone episodes in the City of Johannesburg. National Association for Clean Air (NACA) Annual Conference Proceedings, Umhlanga, Durban, 8-10 October 2014, 4 pp |
en_US |
dc.identifier.isbn |
978-0-620-63065-8 |
|
dc.identifier.uri |
http://hdl.handle.net/10204/8103
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|
dc.description |
National Association for Clean Air (NACA) Annual Conference Proceedings, Umhlanga, Durban, 8-10 October 2014 |
en_US |
dc.description.abstract |
A study of ozone monitoring data in Johannesburg highlighted that the city is frequently affected by high ozone episodes. There is limited knowledge about the chemical and meteorological drivers of these high ozone episodes in Johannesburg. In this paper, a case study of the Delta Park air quality monitoring station is used to describe the process used to identify ozone episodes and the drivers thereof in the city. In 2005 alone, it was found that there were 483 exceedances of the 8-hourly South African National Ambient Air Quality Standard for ozone at Delta Park. The bulk of these episodes occurred in the summer (DJF) and spring (SON) months. Examples of the pollution events during these seasons occurring on 3 February 2005 and 16 September 2005, as well as an event on 31 July 2005 occurring during winter (JJA) are presented. Concentrations of ozone precursor gases at the station were not high for days prior to and on the day of the three ozone episodes. It was unlikely that local sources of pollution contributed to the high ozone concentrations measured at Delta Park station. To determine the origin of the air masses which were transported over Delta Park for the 3 episodes, the Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT) model was used. The results of the case study are used to make recommendations for air quality improvements in the city. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
National Association for Clean Air |
en_US |
dc.relation.ispartofseries |
Workflow;14431 |
|
dc.subject |
Ozone |
en_US |
dc.subject |
Hybrid Single Particle Lagrangian Integrated Trajectory |
en_US |
dc.subject |
HYSPLIT |
en_US |
dc.subject |
Pollution episodes |
en_US |
dc.subject |
Meteorological condition |
en_US |
dc.subject |
Trajectory models |
en_US |
dc.title |
An investigation of high ozone episodes in the City of Johannesburg |
en_US |
dc.type |
Conference Presentation |
en_US |
dc.identifier.apacitation |
Padayachi, Y., Thambiran, T., Naidoo, M., Garland, R. M., & Phala, N. (2014). An investigation of high ozone episodes in the City of Johannesburg. National Association for Clean Air. http://hdl.handle.net/10204/8103 |
en_ZA |
dc.identifier.chicagocitation |
Padayachi, YR, Tirusha Thambiran, M Naidoo, Rebecca M Garland, and N Phala. "An investigation of high ozone episodes in the City of Johannesburg." (2014): http://hdl.handle.net/10204/8103 |
en_ZA |
dc.identifier.vancouvercitation |
Padayachi Y, Thambiran T, Naidoo M, Garland RM, Phala N, An investigation of high ozone episodes in the City of Johannesburg; National Association for Clean Air; 2014. http://hdl.handle.net/10204/8103 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Padayachi, YR
AU - Thambiran, Tirusha
AU - Naidoo, M
AU - Garland, Rebecca M
AU - Phala, N
AB - A study of ozone monitoring data in Johannesburg highlighted that the city is frequently affected by high ozone episodes. There is limited knowledge about the chemical and meteorological drivers of these high ozone episodes in Johannesburg. In this paper, a case study of the Delta Park air quality monitoring station is used to describe the process used to identify ozone episodes and the drivers thereof in the city. In 2005 alone, it was found that there were 483 exceedances of the 8-hourly South African National Ambient Air Quality Standard for ozone at Delta Park. The bulk of these episodes occurred in the summer (DJF) and spring (SON) months. Examples of the pollution events during these seasons occurring on 3 February 2005 and 16 September 2005, as well as an event on 31 July 2005 occurring during winter (JJA) are presented. Concentrations of ozone precursor gases at the station were not high for days prior to and on the day of the three ozone episodes. It was unlikely that local sources of pollution contributed to the high ozone concentrations measured at Delta Park station. To determine the origin of the air masses which were transported over Delta Park for the 3 episodes, the Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT) model was used. The results of the case study are used to make recommendations for air quality improvements in the city.
DA - 2014-10
DB - ResearchSpace
DP - CSIR
KW - Ozone
KW - Hybrid Single Particle Lagrangian Integrated Trajectory
KW - HYSPLIT
KW - Pollution episodes
KW - Meteorological condition
KW - Trajectory models
LK - https://researchspace.csir.co.za
PY - 2014
SM - 978-0-620-63065-8
T1 - An investigation of high ozone episodes in the City of Johannesburg
TI - An investigation of high ozone episodes in the City of Johannesburg
UR - http://hdl.handle.net/10204/8103
ER -
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en_ZA |