Wastewater inputs reduce the CO2 uptake by coastal oceans
Every year a large quantity of wastewater is generated worldwide, but its influence on the carbon dioxide (CO2) uptake by coastal oceans is not well understood. Here, sea surface CO2 partial pressure (pCO2) and air-sea CO2 flux were examined in the Jiaozhou Bay (JZB), a temperate coastal bay strongl...
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| Veröffentlicht in: | The Science of the total environment 2023-11, Vol.901, p.165700-165700, Article 165700 |
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| creator | Li, Yunxiao Xue, Liang Yang, Xufeng Wei, Qinsheng Xin, Ming Xue, Ming Han, Chenhua Han, Ping Liu, Xiangyu Zang, Han Yang, Pengjin Ran, Xiangbin Cao, Lu Cai, Wei-Jun Zhang, Longjun |
| description | Every year a large quantity of wastewater is generated worldwide, but its influence on the carbon dioxide (CO2) uptake by coastal oceans is not well understood. Here, sea surface CO2 partial pressure (pCO2) and air-sea CO2 flux were examined in the Jiaozhou Bay (JZB), a temperate coastal bay strongly disturbed by wastewater inputs. Monthly surveys from April 2014 through March 2015 showed that surface pCO2 in the JZB substantially varied both temporally and spatially between 163 μatm and 1222 μatm, with an annual average of 573 μatm. During April–December, surface pCO2 was oversaturated with respect to the atmosphere, with high values exceeding 1000 μatm in the northeastern part of the bay, where seawater salinity was low mainly due to the inputs of wastewater with salinity close to zero. During January–March, surface pCO2 was undersaturated, with the lowest value of |
| doi_str_mv | 10.1016/j.scitotenv.2023.165700 |
| format | Article |
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•This temperate bay was a net CO2 source, unlike most of temperate coastal oceans.•Wastewater inputs and biological processes dominated pCO2 spatial variability.•Even treated wastewater inputs reduce the CO2 uptake by coastal oceans.</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2023.165700</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Air-sea CO2 flux ; Carbon dioxide ; Coastal ocean ; Jiaozhou Bay ; Wastewater inputs</subject><ispartof>The Science of the total environment, 2023-11, Vol.901, p.165700-165700, Article 165700</ispartof><rights>2023 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c348t-62b5cc914798330d6b525f2387d01c0e300616f5adcb8def05621b16513d26213</citedby><cites>FETCH-LOGICAL-c348t-62b5cc914798330d6b525f2387d01c0e300616f5adcb8def05621b16513d26213</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.scitotenv.2023.165700$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Li, Yunxiao</creatorcontrib><creatorcontrib>Xue, Liang</creatorcontrib><creatorcontrib>Yang, Xufeng</creatorcontrib><creatorcontrib>Wei, Qinsheng</creatorcontrib><creatorcontrib>Xin, Ming</creatorcontrib><creatorcontrib>Xue, Ming</creatorcontrib><creatorcontrib>Han, Chenhua</creatorcontrib><creatorcontrib>Han, Ping</creatorcontrib><creatorcontrib>Liu, Xiangyu</creatorcontrib><creatorcontrib>Zang, Han</creatorcontrib><creatorcontrib>Yang, Pengjin</creatorcontrib><creatorcontrib>Ran, Xiangbin</creatorcontrib><creatorcontrib>Cao, Lu</creatorcontrib><creatorcontrib>Cai, Wei-Jun</creatorcontrib><creatorcontrib>Zhang, Longjun</creatorcontrib><title>Wastewater inputs reduce the CO2 uptake by coastal oceans</title><title>The Science of the total environment</title><description>Every year a large quantity of wastewater is generated worldwide, but its influence on the carbon dioxide (CO2) uptake by coastal oceans is not well understood. Here, sea surface CO2 partial pressure (pCO2) and air-sea CO2 flux were examined in the Jiaozhou Bay (JZB), a temperate coastal bay strongly disturbed by wastewater inputs. Monthly surveys from April 2014 through March 2015 showed that surface pCO2 in the JZB substantially varied both temporally and spatially between 163 μatm and 1222 μatm, with an annual average of 573 μatm. During April–December, surface pCO2 was oversaturated with respect to the atmosphere, with high values exceeding 1000 μatm in the northeastern part of the bay, where seawater salinity was low mainly due to the inputs of wastewater with salinity close to zero. During January–March, surface pCO2 was undersaturated, with the lowest value of <200 μatm also mainly in the northeastern part because of low water temperature and strong biological production. Over an annual cycle, apparently sea surface temperature dominated the monthly variation of surface pCO2 in this shallow bay, while wastewater inputs and related biological production/respiration dominated its spatial variability. Overall, the JZB was a net CO2 source to the atmosphere, emitting 9.6 ± 10.8 mmol C m−2 d−1, unlike its adjacent western part of the Yellow Sea and most of the temperate coastal oceans which are a net CO2 sink. This was possibly associated with wastewater inputs that cause high sea surface pCO2 via direct inputs of CO2 and degradation of organic matter. Thus, from this viewpoint reducing wastewater discharge or lowering CO2 levels in discharged wastewater may be important paths to enhancing the CO2 uptake by coastal oceans in the future.
[Display omitted]
•This temperate bay was a net CO2 source, unlike most of temperate coastal oceans.•Wastewater inputs and biological processes dominated pCO2 spatial variability.•Even treated wastewater inputs reduce the CO2 uptake by coastal oceans.</description><subject>Air-sea CO2 flux</subject><subject>Carbon dioxide</subject><subject>Coastal ocean</subject><subject>Jiaozhou Bay</subject><subject>Wastewater inputs</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqFkD1PwzAQhi0EEqXwG_DIknC2EzsZq4ovqVIXEKPl2BeRkibBdor670kVxMotd8PzvtI9hNwySBkweb9Lg21iH7E7pBy4SJnMFcAZWbBClQkDLs_JAiArklKW6pJchbCDaVTBFqR8NyHit4noadMNYwzUoxst0viBdL3ldByi-URaHantJ9a0tLdounBNLmrTBrz53Uvy9vjwun5ONtunl_Vqk1iRFTGRvMqtLVmmykIIcLLKeV5zUSgHzAIKAMlknRtnq8JhDbnkrJp-YMLx6RRLcjf3Dr7_GjFEvW-CxbY1HfZj0LzIBAhVZnJC1Yxa34fgsdaDb_bGHzUDfZKld_pPlj7J0rOsKbmakzh9cmjQnzjsLLrGo43a9c2_HT8JdXWR</recordid><startdate>20231125</startdate><enddate>20231125</enddate><creator>Li, Yunxiao</creator><creator>Xue, Liang</creator><creator>Yang, Xufeng</creator><creator>Wei, Qinsheng</creator><creator>Xin, Ming</creator><creator>Xue, Ming</creator><creator>Han, Chenhua</creator><creator>Han, Ping</creator><creator>Liu, Xiangyu</creator><creator>Zang, Han</creator><creator>Yang, Pengjin</creator><creator>Ran, Xiangbin</creator><creator>Cao, Lu</creator><creator>Cai, Wei-Jun</creator><creator>Zhang, Longjun</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20231125</creationdate><title>Wastewater inputs reduce the CO2 uptake by coastal oceans</title><author>Li, Yunxiao ; Xue, Liang ; Yang, Xufeng ; Wei, Qinsheng ; Xin, Ming ; Xue, Ming ; Han, Chenhua ; Han, Ping ; Liu, Xiangyu ; Zang, Han ; Yang, Pengjin ; Ran, Xiangbin ; Cao, Lu ; Cai, Wei-Jun ; Zhang, Longjun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c348t-62b5cc914798330d6b525f2387d01c0e300616f5adcb8def05621b16513d26213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Air-sea CO2 flux</topic><topic>Carbon dioxide</topic><topic>Coastal ocean</topic><topic>Jiaozhou Bay</topic><topic>Wastewater inputs</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Yunxiao</creatorcontrib><creatorcontrib>Xue, Liang</creatorcontrib><creatorcontrib>Yang, Xufeng</creatorcontrib><creatorcontrib>Wei, Qinsheng</creatorcontrib><creatorcontrib>Xin, Ming</creatorcontrib><creatorcontrib>Xue, Ming</creatorcontrib><creatorcontrib>Han, Chenhua</creatorcontrib><creatorcontrib>Han, Ping</creatorcontrib><creatorcontrib>Liu, Xiangyu</creatorcontrib><creatorcontrib>Zang, Han</creatorcontrib><creatorcontrib>Yang, Pengjin</creatorcontrib><creatorcontrib>Ran, Xiangbin</creatorcontrib><creatorcontrib>Cao, Lu</creatorcontrib><creatorcontrib>Cai, Wei-Jun</creatorcontrib><creatorcontrib>Zhang, Longjun</creatorcontrib><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Science of the total environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Yunxiao</au><au>Xue, Liang</au><au>Yang, Xufeng</au><au>Wei, Qinsheng</au><au>Xin, Ming</au><au>Xue, Ming</au><au>Han, Chenhua</au><au>Han, Ping</au><au>Liu, Xiangyu</au><au>Zang, Han</au><au>Yang, Pengjin</au><au>Ran, Xiangbin</au><au>Cao, Lu</au><au>Cai, Wei-Jun</au><au>Zhang, Longjun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Wastewater inputs reduce the CO2 uptake by coastal oceans</atitle><jtitle>The Science of the total environment</jtitle><date>2023-11-25</date><risdate>2023</risdate><volume>901</volume><spage>165700</spage><epage>165700</epage><pages>165700-165700</pages><artnum>165700</artnum><issn>0048-9697</issn><eissn>1879-1026</eissn><abstract>Every year a large quantity of wastewater is generated worldwide, but its influence on the carbon dioxide (CO2) uptake by coastal oceans is not well understood. Here, sea surface CO2 partial pressure (pCO2) and air-sea CO2 flux were examined in the Jiaozhou Bay (JZB), a temperate coastal bay strongly disturbed by wastewater inputs. Monthly surveys from April 2014 through March 2015 showed that surface pCO2 in the JZB substantially varied both temporally and spatially between 163 μatm and 1222 μatm, with an annual average of 573 μatm. During April–December, surface pCO2 was oversaturated with respect to the atmosphere, with high values exceeding 1000 μatm in the northeastern part of the bay, where seawater salinity was low mainly due to the inputs of wastewater with salinity close to zero. During January–March, surface pCO2 was undersaturated, with the lowest value of <200 μatm also mainly in the northeastern part because of low water temperature and strong biological production. Over an annual cycle, apparently sea surface temperature dominated the monthly variation of surface pCO2 in this shallow bay, while wastewater inputs and related biological production/respiration dominated its spatial variability. Overall, the JZB was a net CO2 source to the atmosphere, emitting 9.6 ± 10.8 mmol C m−2 d−1, unlike its adjacent western part of the Yellow Sea and most of the temperate coastal oceans which are a net CO2 sink. This was possibly associated with wastewater inputs that cause high sea surface pCO2 via direct inputs of CO2 and degradation of organic matter. Thus, from this viewpoint reducing wastewater discharge or lowering CO2 levels in discharged wastewater may be important paths to enhancing the CO2 uptake by coastal oceans in the future.
[Display omitted]
•This temperate bay was a net CO2 source, unlike most of temperate coastal oceans.•Wastewater inputs and biological processes dominated pCO2 spatial variability.•Even treated wastewater inputs reduce the CO2 uptake by coastal oceans.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.scitotenv.2023.165700</doi><tpages>1</tpages></addata></record> |
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| subjects | Air-sea CO2 flux Carbon dioxide Coastal ocean Jiaozhou Bay Wastewater inputs |
| title | Wastewater inputs reduce the CO2 uptake by coastal oceans |
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