Impacts of urban carbon dioxide emissions on sea-air flux and ocean acidification in nearshore waters.
Journal
PloS one
ISSN: 1932-6203
Titre abrégé: PLoS One
Pays: United States
ID NLM: 101285081
Informations de publication
Date de publication:
2019
2019
Historique:
received:
29
10
2018
accepted:
12
03
2019
entrez:
28
3
2019
pubmed:
28
3
2019
medline:
18
12
2019
Statut:
epublish
Résumé
Greatly enhanced atmospheric carbon dioxide (CO2) levels relative to well-mixed marine air are observed during periods of offshore winds at coastal sensor platforms in Monterey Bay, California, USA. The highest concentrations originate from urban and agricultural areas, are driven by diurnal winds, and peak in the early morning. These enhanced atmospheric levels can be detected across a ~100km wide nearshore area and represent a significant addition to total oceanic CO2 uptake. A global estimate puts the added sea-air flux of CO2 from these greatly enhanced atmospheric CO2 levels at 25 million tonnes, roughly 1% of the ocean's annual CO2 uptake. The increased uptake over the 100 km coastal swath is of order 20%, indicating a potentially large impact on ocean acidification in productive coastal waters.
Identifiants
pubmed: 30917190
doi: 10.1371/journal.pone.0214403
pii: PONE-D-18-31246
pmc: PMC6436797
doi:
Substances chimiques
Carbon Dioxide
142M471B3J
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
e0214403Déclaration de conflit d'intérêts
The authors have declared that no competing interests exist.
Références
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