Computing and application of water quality index in coastal waters of the southern Caspian Sea basin

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

NASROLLAHZADEH SARAVI H.; MAKHLOUGH A.; VAHEDI F.; ABEDINI A.; AGHILI K.; NASROLLAHTABAR A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Scientific Fisheries Journal Year:2020 | Volume:29 | Issue:4 Page(s): 147-159

Download Full-Text

Persian Verion

View:

353

Download:

Cites:

Information Journal Paper

Title

Computing and application of water quality index in coastal waters of the southern Caspian Sea basin

Author(s)

Keywords

Water Quality IndexQ1

Weight of important parametersQ1

Sub-indexQ1

Caspian SeaQ3

IranQ3

Abstract

Water Quality Index is a tool that integrates data of effective factors on water quality. The final result of the index provides simple understanding of water quality for general people. Regarding the importance and application of Water Quality Index in decision making of active and executive units in conservation and exploitation, the present study was conducted for the first time in the southern of Caspian Sea. The aims of paper are to determine: the environmental parameters which are important in water quality, determining weight (wi) of parameters affecting Water Quality Index and sub-indices (qi) of each important parameters of Caspian Sea Water Quality Index (WQIcs). This research will provide the specific and necessary information and data for calculating the Water Quality Index in this aquatic ecosystem. The provided wi and qi were applied for Water Quality Index calculating of the Caspian Sea data in 2018-2019. Using Principal Component Analysis results on long-term data 2003-2019 years (920 water samples), 9 important parameters (turbidity, chlorophyll-a, BOD5, COD, pH, DO%, NO3, NH4 and PO4) were determined for WQIcs and indicator weighting (wi) of each parameter was determined. The Sub-index (qi) of each parameter was calculated based on standards threshold, coastal water quality requirements in marine ecosystems and reference value data of Caspian Sea. Finally, by calculating the geometric mean, the value of Water Quality Index in the Caspian coastal waters was obtained. The application of this formula in 2018-2019 showed that 74 and 26% of WQIcs were in the range of 70-91 (medium class) and 35-69 (bad class), respectively. Among the 9 parameters mentioned above, nitrate and phosphorus (the factors of trophic enrichment) had the greatest effect on decreasing Water Quality Index.

Cites

No record.

References

No record.

Cite

APA: Copy

NASROLLAHZADEH SARAVI, H., MAKHLOUGH, A., VAHEDI, F., ABEDINI, A., AGHILI, K., & NASROLLAHTABAR, A.. (2020). Computing and application of water quality index in coastal waters of the southern Caspian Sea basin. IRANIAN SCIENTIFIC FISHERIES JOURNAL, 29(4 ), 147-159. SID. https://sid.ir/paper/376001/en

Vancouver: Copy

NASROLLAHZADEH SARAVI H., MAKHLOUGH A., VAHEDI F., ABEDINI A., AGHILI K., NASROLLAHTABAR A.. Computing and application of water quality index in coastal waters of the southern Caspian Sea basin. IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2020;29(4 ):147-159. Available from: https://sid.ir/paper/376001/en

IEEE: Copy

H. NASROLLAHZADEH SARAVI, A. MAKHLOUGH, F. VAHEDI, A. ABEDINI, K. AGHILI, and A. NASROLLAHTABAR, “Computing and application of water quality index in coastal waters of the southern Caspian Sea basin,” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 29, no. 4 , pp. 147–159, 2020, [Online]. Available: https://sid.ir/paper/376001/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops