Urbanity as a determinant of exposure to grass pollen in Helsinki Metropolitan area, Finland
Little is known about the levels of exposure to grass pollen in urban environments. We assessed the spatio-temporal variation of grass pollen concentrations and the role of urbanity as a determinant of grass pollen exposure in the Helsinki Metropolitan area. We monitored grass pollen concentrations...
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| Veröffentlicht in: | PloS one 2017-10, Vol.12 (10), p.e0186348-e0186348 |
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| creator | Hugg, Timo T Hjort, Jan Antikainen, Harri Rusanen, Jarmo Tuokila, Mirkka Korkonen, Sanna Weckström, Jan Jaakkola, Maritta S Jaakkola, Jouni J K |
| description | Little is known about the levels of exposure to grass pollen in urban environments. We assessed the spatio-temporal variation of grass pollen concentrations and the role of urbanity as a determinant of grass pollen exposure in the Helsinki Metropolitan area. We monitored grass pollen concentrations in 2013 at 16 sites during the peak pollen season by using rotorod-type samplers at the breathing height. The sites were in the cities of Helsinki and Espoo, Finland, and formed city-specific lines that represented urban-rural gradient. The monitoring sites were both visually and based on land use data ranked as high to low (graded 1 to 8) pollen area. The lowest grass pollen concentrations were observed in the most urban sites compared to the least urban sites (mean 3.6 vs. 6.8 grains/m3 in Helsinki; P |
| doi_str_mv | 10.1371/journal.pone.0186348 |
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We assessed the spatio-temporal variation of grass pollen concentrations and the role of urbanity as a determinant of grass pollen exposure in the Helsinki Metropolitan area. We monitored grass pollen concentrations in 2013 at 16 sites during the peak pollen season by using rotorod-type samplers at the breathing height. The sites were in the cities of Helsinki and Espoo, Finland, and formed city-specific lines that represented urban-rural gradient. The monitoring sites were both visually and based on land use data ranked as high to low (graded 1 to 8) pollen area. The lowest grass pollen concentrations were observed in the most urban sites compared to the least urban sites (mean 3.6 vs. 6.8 grains/m3 in Helsinki; P<0.0001, and 5.2 vs. 87.5 grains/m3 in Espoo; P<0.0001). Significant differences were observed between concentrations measured in morning periods compared to afternoon periods (4.9 vs. 5.4 in Helsinki, P = 0.0186, and 21.8 vs. 67.1 in Espoo, P = 0.0004). The mean pollen concentration increased with decreasing urbanity both in Helsinki (0.59 grains/m3 per urbanity rank, 95% CI 0.25-0.93) and Espoo (8.42, 6.23-10.61). Pollen concentrations were highest in the afternoons and they were related to the ambient temperature. Urbanity was a strong and significant determinant of pollen exposure in two Finnish cities. Pollen exposure can periodically reach such high levels even in the most urban environments that can cause allergic reactions among individuals with allergies.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0186348</identifier><identifier>PMID: 29023565</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Allergic reactions ; Allergies ; Allergy ; Ambient temperature ; Asthma ; Biodiversity ; Biology and Life Sciences ; Breathing ; Care and treatment ; Earth Sciences ; Ecology and Environmental Sciences ; Environmental Monitoring ; Environmental science ; Exposure ; Finland ; Grasses ; Health aspects ; Hospitals ; Hypersensitivity ; Hypotheses ; Land use ; Medical research ; Medicine and Health Sciences ; Metropolitan areas ; People and Places ; Physical Sciences ; Physicians ; Poaceae ; Poaceae - growth & development ; Pollen ; Pollen - chemistry ; Pollen concentrations ; Practice ; Remote sensing ; Rural areas ; Rural land use ; Samplers ; Seasons ; Social Sciences ; Time Factors ; Urban areas ; Urban environments ; Urbanization</subject><ispartof>PloS one, 2017-10, Vol.12 (10), p.e0186348-e0186348</ispartof><rights>COPYRIGHT 2017 Public Library of Science</rights><rights>2017 Hugg et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2017 Hugg et al 2017 Hugg et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-69bf9bbf4af4a75e96fc10d415f385c45853fe525292aa6018fa2576f65870dc3</citedby><cites>FETCH-LOGICAL-c692t-69bf9bbf4af4a75e96fc10d415f385c45853fe525292aa6018fa2576f65870dc3</cites><orcidid>0000-0003-4168-4683</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5638505/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5638505/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79472,79473</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29023565$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>He, Weijing</contributor><creatorcontrib>Hugg, Timo T</creatorcontrib><creatorcontrib>Hjort, Jan</creatorcontrib><creatorcontrib>Antikainen, Harri</creatorcontrib><creatorcontrib>Rusanen, Jarmo</creatorcontrib><creatorcontrib>Tuokila, Mirkka</creatorcontrib><creatorcontrib>Korkonen, Sanna</creatorcontrib><creatorcontrib>Weckström, Jan</creatorcontrib><creatorcontrib>Jaakkola, Maritta S</creatorcontrib><creatorcontrib>Jaakkola, Jouni J K</creatorcontrib><title>Urbanity as a determinant of exposure to grass pollen in Helsinki Metropolitan area, Finland</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Little is known about the levels of exposure to grass pollen in urban environments. We assessed the spatio-temporal variation of grass pollen concentrations and the role of urbanity as a determinant of grass pollen exposure in the Helsinki Metropolitan area. We monitored grass pollen concentrations in 2013 at 16 sites during the peak pollen season by using rotorod-type samplers at the breathing height. The sites were in the cities of Helsinki and Espoo, Finland, and formed city-specific lines that represented urban-rural gradient. The monitoring sites were both visually and based on land use data ranked as high to low (graded 1 to 8) pollen area. The lowest grass pollen concentrations were observed in the most urban sites compared to the least urban sites (mean 3.6 vs. 6.8 grains/m3 in Helsinki; P<0.0001, and 5.2 vs. 87.5 grains/m3 in Espoo; P<0.0001). Significant differences were observed between concentrations measured in morning periods compared to afternoon periods (4.9 vs. 5.4 in Helsinki, P = 0.0186, and 21.8 vs. 67.1 in Espoo, P = 0.0004). The mean pollen concentration increased with decreasing urbanity both in Helsinki (0.59 grains/m3 per urbanity rank, 95% CI 0.25-0.93) and Espoo (8.42, 6.23-10.61). Pollen concentrations were highest in the afternoons and they were related to the ambient temperature. Urbanity was a strong and significant determinant of pollen exposure in two Finnish cities. Pollen exposure can periodically reach such high levels even in the most urban environments that can cause allergic reactions among individuals with allergies.</description><subject>Allergic reactions</subject><subject>Allergies</subject><subject>Allergy</subject><subject>Ambient temperature</subject><subject>Asthma</subject><subject>Biodiversity</subject><subject>Biology and Life Sciences</subject><subject>Breathing</subject><subject>Care and treatment</subject><subject>Earth Sciences</subject><subject>Ecology and Environmental Sciences</subject><subject>Environmental Monitoring</subject><subject>Environmental science</subject><subject>Exposure</subject><subject>Finland</subject><subject>Grasses</subject><subject>Health aspects</subject><subject>Hospitals</subject><subject>Hypersensitivity</subject><subject>Hypotheses</subject><subject>Land use</subject><subject>Medical research</subject><subject>Medicine and Health Sciences</subject><subject>Metropolitan 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as a determinant of exposure to grass pollen in Helsinki Metropolitan area, Finland</title><author>Hugg, Timo T ; Hjort, Jan ; Antikainen, Harri ; Rusanen, Jarmo ; Tuokila, Mirkka ; Korkonen, Sanna ; Weckström, Jan ; Jaakkola, Maritta S ; Jaakkola, Jouni J K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-69bf9bbf4af4a75e96fc10d415f385c45853fe525292aa6018fa2576f65870dc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Allergic reactions</topic><topic>Allergies</topic><topic>Allergy</topic><topic>Ambient temperature</topic><topic>Asthma</topic><topic>Biodiversity</topic><topic>Biology and Life Sciences</topic><topic>Breathing</topic><topic>Care and treatment</topic><topic>Earth Sciences</topic><topic>Ecology and Environmental Sciences</topic><topic>Environmental Monitoring</topic><topic>Environmental 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We assessed the spatio-temporal variation of grass pollen concentrations and the role of urbanity as a determinant of grass pollen exposure in the Helsinki Metropolitan area. We monitored grass pollen concentrations in 2013 at 16 sites during the peak pollen season by using rotorod-type samplers at the breathing height. The sites were in the cities of Helsinki and Espoo, Finland, and formed city-specific lines that represented urban-rural gradient. The monitoring sites were both visually and based on land use data ranked as high to low (graded 1 to 8) pollen area. The lowest grass pollen concentrations were observed in the most urban sites compared to the least urban sites (mean 3.6 vs. 6.8 grains/m3 in Helsinki; P<0.0001, and 5.2 vs. 87.5 grains/m3 in Espoo; P<0.0001). Significant differences were observed between concentrations measured in morning periods compared to afternoon periods (4.9 vs. 5.4 in Helsinki, P = 0.0186, and 21.8 vs. 67.1 in Espoo, P = 0.0004). The mean pollen concentration increased with decreasing urbanity both in Helsinki (0.59 grains/m3 per urbanity rank, 95% CI 0.25-0.93) and Espoo (8.42, 6.23-10.61). Pollen concentrations were highest in the afternoons and they were related to the ambient temperature. Urbanity was a strong and significant determinant of pollen exposure in two Finnish cities. Pollen exposure can periodically reach such high levels even in the most urban environments that can cause allergic reactions among individuals with allergies.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>29023565</pmid><doi>10.1371/journal.pone.0186348</doi><tpages>e0186348</tpages><orcidid>https://orcid.org/0000-0003-4168-4683</orcidid><oa>free_for_read</oa></addata></record> |
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| issn | 1932-6203 1932-6203 |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Public Library of Science (PLoS); PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Allergic reactions Allergies Allergy Ambient temperature Asthma Biodiversity Biology and Life Sciences Breathing Care and treatment Earth Sciences Ecology and Environmental Sciences Environmental Monitoring Environmental science Exposure Finland Grasses Health aspects Hospitals Hypersensitivity Hypotheses Land use Medical research Medicine and Health Sciences Metropolitan areas People and Places Physical Sciences Physicians Poaceae Poaceae - growth & development Pollen Pollen - chemistry Pollen concentrations Practice Remote sensing Rural areas Rural land use Samplers Seasons Social Sciences Time Factors Urban areas Urban environments Urbanization |
| title | Urbanity as a determinant of exposure to grass pollen in Helsinki Metropolitan area, Finland |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-08T03%3A17%3A16IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Urbanity%20as%20a%20determinant%20of%20exposure%20to%20grass%20pollen%20in%20Helsinki%20Metropolitan%20area,%20Finland&rft.jtitle=PloS%20one&rft.au=Hugg,%20Timo%20T&rft.date=2017-10-12&rft.volume=12&rft.issue=10&rft.spage=e0186348&rft.epage=e0186348&rft.pages=e0186348-e0186348&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0186348&rft_dat=%3Cgale_plos_%3EA509259978%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1950429706&rft_id=info:pmid/29023565&rft_galeid=A509259978&rft_doaj_id=oai_doaj_org_article_8162d956401048ff9dccfe6a4b410362&rfr_iscdi=true |