We use cookies to imporve your experience. By using our site, you consent to our cookie policy Learn more
arrow arrow_up breadcrumb-chevron-right breadcrumb-home dropdown-arrow-down loader GALogoWUNEP GALogo2018 GALogo2019 menu read-more-plus rrss-email rrss-facebook rrss-flickr rrss-instagram rrss-linkedin rrss-twitter rrss-vimeo rrss-youtube rrss_google_plus rrss_skype rrss_web pdf search share Completed In Process Ideas In Develpment Toogle Toogle Thumbnail View List View play close filter-collapse filter edit media_photo_library media_video_library graphics pictures videos collections next

Sources and sinks of heavy metals

Wastewater is used in agriculture in many parts of Africa and this practice has implications for both human and ecosystem health. Heavy metals in contaminated wastewater pose several risks to humans through assimilation pathways such as the ingestion of plant material (in the food chain). Heavy metals also destroy soil organisms that are responsible for nitrogen fixation, increase drainage and soil aeration. Although the metal concentrations in domestic wastewater effluents are usually relatively low, long-term irrigation with wastewater can eventually result in heavy metal accumulation in the soil (Wuana and Okieimen 2011).

Year: 2020

From collection: Sanitation and Wastewater Atlas of Africa - Ecosystems

Cartographer: GRID-Arendal/Studio Atlantis

Tags: Africa sanitation wastewater

Graphics included in same album

View all media

Publications it appears in

View all publications

Related activities

View all activities