Diverse Land Use and the Impact on (Irrigation) Water Quality and Need for Measures — A Case Study of a Norwegian River

International Journal of Environmental Research and Public Health

Gro S. Johannessen²  Aina C. Wennberg¹  Ingrid Nesheim¹  Ingun Tryland¹  Mieke Uyttendaele³  Eelco Franz³ 

[1]Norwegian Institute for Water Research, Gaustadalléen 21, NO-0349 Oslo, Norway

[2] E-Mails:

[3]Norwegian Veterinary Institute, P.O. Box 750 Sentrum, NO-0106 Oslo, Norway

[4]id="af1-ijerph-12-06979">1Norwegian Veterinary Institute, P.O. Box 750 Sentrum, NO-0106 Oslo, Norw

关键词: water quality;    fecal indicator bacteria;    E. coli;    municipal measures;    irrigation water;    fecal contamination source;   

DOI  :  10.3390/ijerph120606979

来源: mdpi

【 摘 要 】

Surface water is used for irrigation of food plants all over the World. Such water can be of variable hygienic quality, and can be contaminated from many different sources. The association of contaminated irrigation water with contamination of fresh produce is well established, and many outbreaks of foodborne disease associated with fresh produce consumption have been reported. The objective of the present study was to summarize the data on fecal indicators and selected bacterial pathogens to assess the level of fecal contamination of a Norwegian river used for irrigation in an area which has a high production level of various types of food commodities. Sources for fecal pollution of the river were identified. Measures implemented to reduce discharges from the wastewater sector and agriculture, and potential measures identified for future implementation are presented and discussed in relation to potential benefits and costs. It is important that the users of the water, independent of intended use, are aware of the hygienic quality and the potential interventions that may be applied. Our results suggest that contamination of surface water is a complex web of many factors and that several measures and interventions on different levels are needed to achieve a sound river and safe irrigation.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.