Impacts of Desert Dust Outbreaks on Air Quality in Urban Areas
Air pollution has many adverse effects on health and is associated with an increased risk of mortality. Desert dust outbreaks contribute directly to air pollution by increasing particulate matter concentrations. We investigated the influence of desert dust outbreaks on air quality in Santa Cruz de T...
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MDPI AG
2019-12-01
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Online Access: | https://www.mdpi.com/2073-4433/11/1/23 |
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doaj-2be0917a1c64485b801c819fcaca9275 |
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Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Celia Milford Emilio Cuevas Carlos L. Marrero J.J. Bustos Víctor Gallo Sergio Rodríguez Pedro M. Romero-Campos Carlos Torres |
spellingShingle |
Celia Milford Emilio Cuevas Carlos L. Marrero J.J. Bustos Víctor Gallo Sergio Rodríguez Pedro M. Romero-Campos Carlos Torres Impacts of Desert Dust Outbreaks on Air Quality in Urban Areas Atmosphere desert dust air quality particulate matter anthropogenic pollution |
author_facet |
Celia Milford Emilio Cuevas Carlos L. Marrero J.J. Bustos Víctor Gallo Sergio Rodríguez Pedro M. Romero-Campos Carlos Torres |
author_sort |
Celia Milford |
title |
Impacts of Desert Dust Outbreaks on Air Quality in Urban Areas |
title_short |
Impacts of Desert Dust Outbreaks on Air Quality in Urban Areas |
title_full |
Impacts of Desert Dust Outbreaks on Air Quality in Urban Areas |
title_fullStr |
Impacts of Desert Dust Outbreaks on Air Quality in Urban Areas |
title_full_unstemmed |
Impacts of Desert Dust Outbreaks on Air Quality in Urban Areas |
title_sort |
impacts of desert dust outbreaks on air quality in urban areas |
publisher |
MDPI AG |
series |
Atmosphere |
issn |
2073-4433 |
publishDate |
2019-12-01 |
description |
Air pollution has many adverse effects on health and is associated with an increased risk of mortality. Desert dust outbreaks contribute directly to air pollution by increasing particulate matter concentrations. We investigated the influence of desert dust outbreaks on air quality in Santa Cruz de Tenerife, a city located in the dust export pathway off the west coast of North Africa, using air-quality observations from a six-year period (2012−2017). During winter intense dust outbreaks PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>10</mn> </msub> </semantics> </math> </inline-formula> mean (24-h) concentrations increased from 14 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula> to 98 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula>, on average, and PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mrow> <mn>2</mn> <mo>.</mo> <mn>5</mn> </mrow> </msub> </semantics> </math> </inline-formula> mean (24-h) concentrations increased from 6 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula> to 32 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula>. Increases were less during summer outbreaks, with a tripling of PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>10</mn> </msub> </semantics> </math> </inline-formula> and PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mrow> <mn>2</mn> <mo>.</mo> <mn>5</mn> </mrow> </msub> </semantics> </math> </inline-formula> daily mean concentrations. We found that desert dust outbreaks reduced the height of the marine boundary layer in our study area by >45%, on average, in summer and by ∼25%, on average, in winter. This thinning of the marine boundary layer was associated with an increase of local anthropogenic pollution during dust outbreaks. NO<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula> and NO mean concentrations more than doubled and even larger relative increases in black carbon were observed during the more intense summer dust outbreaks; increases also occurred during the winter outbreaks but were less than in summer. This has public health implications; local anthropogenic emissions need to be reduced even further in areas that are impacted by desert dust outbreaks to reduce adverse health effects. |
topic |
desert dust air quality particulate matter anthropogenic pollution |
url |
https://www.mdpi.com/2073-4433/11/1/23 |
work_keys_str_mv |
AT celiamilford impactsofdesertdustoutbreaksonairqualityinurbanareas AT emiliocuevas impactsofdesertdustoutbreaksonairqualityinurbanareas AT carloslmarrero impactsofdesertdustoutbreaksonairqualityinurbanareas AT jjbustos impactsofdesertdustoutbreaksonairqualityinurbanareas AT victorgallo impactsofdesertdustoutbreaksonairqualityinurbanareas AT sergiorodriguez impactsofdesertdustoutbreaksonairqualityinurbanareas AT pedromromerocampos impactsofdesertdustoutbreaksonairqualityinurbanareas AT carlostorres impactsofdesertdustoutbreaksonairqualityinurbanareas |
_version_ |
1724863970255306752 |
spelling |
doaj-2be0917a1c64485b801c819fcaca92752020-11-25T02:22:01ZengMDPI AGAtmosphere2073-44332019-12-011112310.3390/atmos11010023atmos11010023Impacts of Desert Dust Outbreaks on Air Quality in Urban AreasCelia Milford0Emilio Cuevas1Carlos L. Marrero2J.J. Bustos3Víctor Gallo4Sergio Rodríguez5Pedro M. Romero-Campos6Carlos Torres7Izaña Atmospheric Research Center, AEMET, Santa Cruz de Tenerife 38001, SpainIzaña Atmospheric Research Center, AEMET, Santa Cruz de Tenerife 38001, SpainIzaña Atmospheric Research Center, AEMET, Santa Cruz de Tenerife 38001, SpainIzaña Atmospheric Research Center, AEMET, Santa Cruz de Tenerife 38001, SpainEnvironment Vice-Ministry, Canary Islands Government, Santa Cruz de Tenerife 34922, SpainExperimental Station of Arid Zones, EEZA CSIC, Almería 04120, SpainIzaña Atmospheric Research Center, AEMET, Santa Cruz de Tenerife 38001, SpainIzaña Atmospheric Research Center, AEMET, Santa Cruz de Tenerife 38001, SpainAir pollution has many adverse effects on health and is associated with an increased risk of mortality. Desert dust outbreaks contribute directly to air pollution by increasing particulate matter concentrations. We investigated the influence of desert dust outbreaks on air quality in Santa Cruz de Tenerife, a city located in the dust export pathway off the west coast of North Africa, using air-quality observations from a six-year period (2012−2017). During winter intense dust outbreaks PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>10</mn> </msub> </semantics> </math> </inline-formula> mean (24-h) concentrations increased from 14 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula> to 98 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula>, on average, and PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mrow> <mn>2</mn> <mo>.</mo> <mn>5</mn> </mrow> </msub> </semantics> </math> </inline-formula> mean (24-h) concentrations increased from 6 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula> to 32 <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>g m<inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mrow> <mo>−</mo> <mn>3</mn> </mrow> </msup> </semantics> </math> </inline-formula>. Increases were less during summer outbreaks, with a tripling of PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>10</mn> </msub> </semantics> </math> </inline-formula> and PM<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mrow> <mn>2</mn> <mo>.</mo> <mn>5</mn> </mrow> </msub> </semantics> </math> </inline-formula> daily mean concentrations. We found that desert dust outbreaks reduced the height of the marine boundary layer in our study area by >45%, on average, in summer and by ∼25%, on average, in winter. This thinning of the marine boundary layer was associated with an increase of local anthropogenic pollution during dust outbreaks. NO<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula> and NO mean concentrations more than doubled and even larger relative increases in black carbon were observed during the more intense summer dust outbreaks; increases also occurred during the winter outbreaks but were less than in summer. This has public health implications; local anthropogenic emissions need to be reduced even further in areas that are impacted by desert dust outbreaks to reduce adverse health effects.https://www.mdpi.com/2073-4433/11/1/23desert dustair qualityparticulate matteranthropogenic pollution |