Articles | Volume 16, issue 24
https://doi.org/10.5194/bg-16-4747-2019
https://doi.org/10.5194/bg-16-4747-2019
Research article
 | 
16 Dec 2019
Research article |  | 16 Dec 2019

Long-term trends in pH in Japanese coastal seawater

Miho Ishizu, Yasumasa Miyazawa, Tomohiko Tsunoda, and Tsuneo Ono

Viewed

Total article views: 2,402 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
1,505 840 57 2,402 133 41 56
  • HTML: 1,505
  • PDF: 840
  • XML: 57
  • Total: 2,402
  • Supplement: 133
  • BibTeX: 41
  • EndNote: 56
Views and downloads (calculated since 21 May 2019)
Cumulative views and downloads (calculated since 21 May 2019)

Viewed (geographical distribution)

Total article views: 2,402 (including HTML, PDF, and XML) Thereof 2,127 with geography defined and 275 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 04 Mar 2024
Download
Short summary
Using water quality data collected at 289 monitoring sites as part of the Water Pollution Control Program, we evaluated the long-term trends of pH in Japanese coastal seawater at ambient temperature from 1978 to 2009. We found that the annual maximum pH, which generally represents the pH of surface waters in winter, had decreased at 75 % of the sites, but had increased at the remaining sites. The annual maximum pH decreased at an average rate of −0.0024 yr−1, with relatively large deviations.
Altmetrics
Final-revised paper
Preprint