Seasonal and diurnal variations of carbonyl compounds in the urban atmosphere of Guangzhou, China
Seasonal and diurnal variations of carbonyl compounds were investigated at two sampling sites (Liwan and Wushan) in the ambient air of Guangzhou, China. Air samples were collected during 2005 from January to November, and carbonyl compounds were analyzed with HPLC. The results show that carbonyls ex...
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| Veröffentlicht in: | The Science of the total environment 2010-08, Vol.408 (17), p.3523-3529 |
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| creator | Lü, Huixiong Cai, Quan-Ying Wen, Sheng Chi, Yuguang Guo, Songjun Sheng, Guoying Fu, Jiamo |
| description | Seasonal and diurnal variations of carbonyl compounds were investigated at two sampling sites (Liwan and Wushan) in the ambient air of Guangzhou, China. Air samples were collected during 2005 from January to November, and carbonyl compounds were analyzed with HPLC. The results show that carbonyls exhibit distinct seasonal variation. The total concentrations of 21 carbonyls detected ranged from 2.64 to 103.6
μg
m
−
3 at Liwan and from 5.46 to 89.9
μg
m
−
3 at Wushan, respectively. The average total concentrations of carbonyls at both Liwan and Wushan decreased in order of summer>spring>autumn>winter. Formaldehyde, acetaldehyde, and acetone were the most abundant carbonyl compounds, which accounted for more than 60% of the total concentrations of carbonyls. The mean concentration ratios of summer/winter were all >
1.0 for the total concentrations and the individual carbonyl compound. The diurnal variation of carbonyls was not distinct in this study. The average concentration ratios of formaldehyde/acetaldehyde (C
1/C
2) varied from 0.71 to 1.32 and 0.65 to 1.14 at Liwan and Wushan, respectively, and the average concentration ratios of acetaldehyde/propionaldehyde (C
2/C
3) varied from 5.42 to 7.70 and 5.02 to 13.9 in Liwan and Wushan, respectively. Regarding photochemical reactivity of carbonyls and the ozone production, acetaldehyde, butyraldehyde, formaldehyde, and valeraldehyde account for 75–90% to the total propene-equivalent concentrations, while formaldehyde, acetaldehyde, valeraldehyde, butyraldehyde, and propionaldehyde contribute 89–96% to the total ozone formation potentials (ranging from 105 to 274
μg
m
–
3). The ozone formation potentials in summer were higher by 1–2 times than those in the other seasons. |
| doi_str_mv | 10.1016/j.scitotenv.2010.05.013 |
| format | Article |
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μg
m
−
3 at Liwan and from 5.46 to 89.9
μg
m
−
3 at Wushan, respectively. The average total concentrations of carbonyls at both Liwan and Wushan decreased in order of summer>spring>autumn>winter. Formaldehyde, acetaldehyde, and acetone were the most abundant carbonyl compounds, which accounted for more than 60% of the total concentrations of carbonyls. The mean concentration ratios of summer/winter were all >
1.0 for the total concentrations and the individual carbonyl compound. The diurnal variation of carbonyls was not distinct in this study. The average concentration ratios of formaldehyde/acetaldehyde (C
1/C
2) varied from 0.71 to 1.32 and 0.65 to 1.14 at Liwan and Wushan, respectively, and the average concentration ratios of acetaldehyde/propionaldehyde (C
2/C
3) varied from 5.42 to 7.70 and 5.02 to 13.9 in Liwan and Wushan, respectively. Regarding photochemical reactivity of carbonyls and the ozone production, acetaldehyde, butyraldehyde, formaldehyde, and valeraldehyde account for 75–90% to the total propene-equivalent concentrations, while formaldehyde, acetaldehyde, valeraldehyde, butyraldehyde, and propionaldehyde contribute 89–96% to the total ozone formation potentials (ranging from 105 to 274
μg
m
–
3). The ozone formation potentials in summer were higher by 1–2 times than those in the other seasons.</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2010.05.013</identifier><identifier>PMID: 20593540</identifier><identifier>CODEN: STENDL</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Acetaldehyde ; Acetone - analysis ; Air Pollutants - analysis ; Aldehydes - analysis ; Applied sciences ; Atmosphere - chemistry ; Atmospheric pollution ; Butyraldehyde ; Carbonyl compounds ; Carbonyls ; China ; Cities ; Diurnal variation ; Diurnal variations ; Environmental Monitoring ; Exact sciences and technology ; Formaldehyde ; Ozone ; Ozone - analysis ; Ozone formation ; Photochemical ; Photochemical Processes ; Pollutants physicochemistry study: properties, effects, reactions, transport and distribution ; Pollution ; Seasonal variation ; Seasons ; Sources ; Summer</subject><ispartof>The Science of the total environment, 2010-08, Vol.408 (17), p.3523-3529</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c489t-551539c0fa0a26f0517c2a315c1207d56c4a1328e9d56ef0669bf896c14e5e3f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0048969710004869$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22980264$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20593540$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lü, Huixiong</creatorcontrib><creatorcontrib>Cai, Quan-Ying</creatorcontrib><creatorcontrib>Wen, Sheng</creatorcontrib><creatorcontrib>Chi, Yuguang</creatorcontrib><creatorcontrib>Guo, Songjun</creatorcontrib><creatorcontrib>Sheng, Guoying</creatorcontrib><creatorcontrib>Fu, Jiamo</creatorcontrib><title>Seasonal and diurnal variations of carbonyl compounds in the urban atmosphere of Guangzhou, China</title><title>The Science of the total environment</title><addtitle>Sci Total Environ</addtitle><description>Seasonal and diurnal variations of carbonyl compounds were investigated at two sampling sites (Liwan and Wushan) in the ambient air of Guangzhou, China. Air samples were collected during 2005 from January to November, and carbonyl compounds were analyzed with HPLC. The results show that carbonyls exhibit distinct seasonal variation. The total concentrations of 21 carbonyls detected ranged from 2.64 to 103.6
μg
m
−
3 at Liwan and from 5.46 to 89.9
μg
m
−
3 at Wushan, respectively. The average total concentrations of carbonyls at both Liwan and Wushan decreased in order of summer>spring>autumn>winter. Formaldehyde, acetaldehyde, and acetone were the most abundant carbonyl compounds, which accounted for more than 60% of the total concentrations of carbonyls. The mean concentration ratios of summer/winter were all >
1.0 for the total concentrations and the individual carbonyl compound. The diurnal variation of carbonyls was not distinct in this study. The average concentration ratios of formaldehyde/acetaldehyde (C
1/C
2) varied from 0.71 to 1.32 and 0.65 to 1.14 at Liwan and Wushan, respectively, and the average concentration ratios of acetaldehyde/propionaldehyde (C
2/C
3) varied from 5.42 to 7.70 and 5.02 to 13.9 in Liwan and Wushan, respectively. Regarding photochemical reactivity of carbonyls and the ozone production, acetaldehyde, butyraldehyde, formaldehyde, and valeraldehyde account for 75–90% to the total propene-equivalent concentrations, while formaldehyde, acetaldehyde, valeraldehyde, butyraldehyde, and propionaldehyde contribute 89–96% to the total ozone formation potentials (ranging from 105 to 274
μg
m
–
3). The ozone formation potentials in summer were higher by 1–2 times than those in the other seasons.</description><subject>Acetaldehyde</subject><subject>Acetone - analysis</subject><subject>Air Pollutants - analysis</subject><subject>Aldehydes - analysis</subject><subject>Applied sciences</subject><subject>Atmosphere - chemistry</subject><subject>Atmospheric pollution</subject><subject>Butyraldehyde</subject><subject>Carbonyl compounds</subject><subject>Carbonyls</subject><subject>China</subject><subject>Cities</subject><subject>Diurnal variation</subject><subject>Diurnal variations</subject><subject>Environmental Monitoring</subject><subject>Exact sciences and technology</subject><subject>Formaldehyde</subject><subject>Ozone</subject><subject>Ozone - analysis</subject><subject>Ozone formation</subject><subject>Photochemical</subject><subject>Photochemical Processes</subject><subject>Pollutants physicochemistry study: properties, effects, reactions, transport and distribution</subject><subject>Pollution</subject><subject>Seasonal variation</subject><subject>Seasons</subject><subject>Sources</subject><subject>Summer</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0U1vEzEQBuAVAtFQ-AvUFwQHEsb2-mOPVdQWpEocSs_WxOttHO3awd6N1P56vEooN-qLLesZz1hvVV1QWFGg8ttula0f4-jCYcWg3IJYAeWvqgXVqllSYPJ1tQCo9bKRjTqr3uW8g7KUpm-rMwai4aKGRYV3DnMM2BMMLWn9lObzAZPH0ceQSeyIxbSJ4bEnNg77OIU2Ex_IuHVkShsMBMch5v3WJTfrmwnDw9M2Tl_JeusDvq_edNhn9-G0n1f311e_1t-Xtz9vfqwvb5e21s24FIIK3ljoEJDJDgRVliGnwlIGqhXS1kg5064pZ9eBlM2m0420tHbC8Y6fV5-P7-5T_D25PJrBZ-v6HoOLUzaqfBm0FPplybmQqpasyC__lVQp4JwyJgpVR2pTzDm5zuyTHzA9GgpmzszszHNmZs7MgDAls1L58dRk2gyufa77G1IBn04As8W-Sxisz_8ca3TJuy7u4ug6jAYfUjH3d6UTB6qF1owWcXkUrgRx8C7NI7lgXeuTs6Npo39x3D83acHq</recordid><startdate>20100801</startdate><enddate>20100801</enddate><creator>Lü, Huixiong</creator><creator>Cai, Quan-Ying</creator><creator>Wen, Sheng</creator><creator>Chi, Yuguang</creator><creator>Guo, Songjun</creator><creator>Sheng, Guoying</creator><creator>Fu, Jiamo</creator><general>Elsevier B.V</general><general>[Amsterdam; 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Air samples were collected during 2005 from January to November, and carbonyl compounds were analyzed with HPLC. The results show that carbonyls exhibit distinct seasonal variation. The total concentrations of 21 carbonyls detected ranged from 2.64 to 103.6
μg
m
−
3 at Liwan and from 5.46 to 89.9
μg
m
−
3 at Wushan, respectively. The average total concentrations of carbonyls at both Liwan and Wushan decreased in order of summer>spring>autumn>winter. Formaldehyde, acetaldehyde, and acetone were the most abundant carbonyl compounds, which accounted for more than 60% of the total concentrations of carbonyls. The mean concentration ratios of summer/winter were all >
1.0 for the total concentrations and the individual carbonyl compound. The diurnal variation of carbonyls was not distinct in this study. The average concentration ratios of formaldehyde/acetaldehyde (C
1/C
2) varied from 0.71 to 1.32 and 0.65 to 1.14 at Liwan and Wushan, respectively, and the average concentration ratios of acetaldehyde/propionaldehyde (C
2/C
3) varied from 5.42 to 7.70 and 5.02 to 13.9 in Liwan and Wushan, respectively. Regarding photochemical reactivity of carbonyls and the ozone production, acetaldehyde, butyraldehyde, formaldehyde, and valeraldehyde account for 75–90% to the total propene-equivalent concentrations, while formaldehyde, acetaldehyde, valeraldehyde, butyraldehyde, and propionaldehyde contribute 89–96% to the total ozone formation potentials (ranging from 105 to 274
μg
m
–
3). The ozone formation potentials in summer were higher by 1–2 times than those in the other seasons.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><pmid>20593540</pmid><doi>10.1016/j.scitotenv.2010.05.013</doi><tpages>7</tpages></addata></record> |
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| subjects | Acetaldehyde Acetone - analysis Air Pollutants - analysis Aldehydes - analysis Applied sciences Atmosphere - chemistry Atmospheric pollution Butyraldehyde Carbonyl compounds Carbonyls China Cities Diurnal variation Diurnal variations Environmental Monitoring Exact sciences and technology Formaldehyde Ozone Ozone - analysis Ozone formation Photochemical Photochemical Processes Pollutants physicochemistry study: properties, effects, reactions, transport and distribution Pollution Seasonal variation Seasons Sources Summer |
| title | Seasonal and diurnal variations of carbonyl compounds in the urban atmosphere of Guangzhou, China |
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