+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Impacts of nutrients and pesticides from small- and large-scale agriculture on the water quality of Lake Ziway, Ethiopia

Impacts of nutrients and pesticides from small- and large-scale agriculture on the water quality of Lake Ziway, Ethiopia

Environmental Science and Pollution Research International 25(14): 13207-13216

The area around Lake Ziway in Ethiopia is going through a major agricultural transformation with both small-scale farmers and large horticultural companies using pesticides and fertilisers at an increased rate. To be able to understand how this influences the water quality of Lake Ziway, water quality data was gathered to study the dynamics of pesticide concentrations and physicochemical parameters for the years from 2009 to 2015. Results indicate that for some physicochemical parameters, including pH, potassium and iron, over 50 % of the values were above the maximum permissible limit of the Ethiopian standard for drinking water. The fungicide spiroxamine poses a high chronic risk when the water is used for drinking water, while the estimated intake of diazinon was approximately 50 % of the acceptable daily intake. Higher-tier risk assessment indicated that the fungicide spiroxamine poses a high acute risk to aquatic organisms, while possible acute risks were indicated for the insecticides deltamethrin and endosulfan. Longer-term monitoring needs to be established to show the water quality changes across time and space, and the current study can be used as a baseline measurement for further research in the area as well as an example for other surface water systems in Ethiopia and Africa.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 058065037

Download citation: RISBibTeXText

PMID: 27126865

DOI: 10.1007/s11356-016-6714-1

Related references

Concentrations and human health risk assessment of organochlorine pesticides in edible fish species from a Rift Valley lake-Lake Ziway, Ethiopia. Ecotoxicology and Environmental Safety 106: 95, 2014

The impact of a small-scale irrigation scheme on malaria transmission in Ziway area, Central Ethiopia. Tropical Medicine and International Health 15(1): 41-50, 2010

Identifying sustainability challenges on land and water uses: The case of Lake Ziway watershed, Ethiopia. Applied Geography 88: 130-143, 2017

Releasing rate of selected nutrients from the decomposing water hyacinths and its impacts on the lake water quality. IAGLR Conference Program & Abstracts 46: 240, 2003

Assessing Impacts of Triazine Pesticides Use in Agriculture over the WELL WATER QUALITY. Environmental Engineering and Management Journal 11(2): 319-323, 2012

Lake evaporation estimates in tropical Africa (Lake Ziway, Ethiopia). Journal of hydrology 245(1-4): 1-18, 2001

Distribution of polycyclic aromatic hydrocarbons in sediments of Akaki River, Lake Awassa, and Lake Ziway, Ethiopia. Environmental Monitoring and Assessment 187(7): 474, 2015

Occurrence, distribution, and ecological risk assessment of potentially toxic elements in surface sediments of Lake Awassa and Lake Ziway, Ethiopia. Journal of Environmental Science and Health. Part A Toxic/Hazardous Substances and Environmental Engineering 50(1): 90-99, 2015

The ecology of Biomphalaria sudanica in Lake Ziway, Ethiopia. African Journal of Ecology 44(3): 347-352, 2006

Mathematical modeling of water quality in small rivers (nutrients, pesticides and other chemical properties). Catena 3 (1) 1-16, 1976

Farmers awareness and perception of Lake Ziway (Ethiopia) and its watershed management. Limnologica - Ecology and Management of Inland Waters 65: 61-75, 2017

Degradation of Lake Ziway, Ethiopia: A study of the environmental perceptions of school students. Lakes & Reservoirs: Research & Management 20(4): 243-255, 2015

Twentieth century fluctuations in lake level in the Ziway-Shala Basin, Ethiopia. Palaeoecology of Africa and of the Surrounding Islands and Antarctica 14: 99-110, 1982

Time series analysis of water quality data from Lake Ontario: implications for the measurement of water quality in large and small lakes. Freshwater Biology 18(3): 389-403, 1987

Time series analysis of water quality data from lake ontario canada usa implications for the measurement of water quality in large and small lakes. Freshwater Biology 18(3): 389-404, 1987