John F. Machiwa

Environmental assessment of mercury contamination from the Rwamagasa artisanal gold mining centre, Geita District, Tanzania

Helen Taylor, J.D. Appleton, R. Lister et al. · The Science of The Total Environment · 2005 · 176 citations

Mining Environment, Environmental Chemistry, Environmental Assessment +13

The influence of land-use patterns in the Ruvu river watershed on water quality in the river system

Elizabeth Ngoye, John F. Machiwa · Physics and Chemistry of the Earth Parts A/B/C · 2004 · 163 citations

Ruvu River, River Basin Management, Engineering +9

Polycyclic aromatic hydrocarbon (PAH) contamination of surface sediments and oysters from the inter-tidal areas of Dar es Salaam, Tanzania

Lydia Gaspare, John F. Machiwa, S.J.M. Mdachi et al. · Environmental Pollution · 2008 · 107 citations

Organic Geochemistry, Environmental Chemistry, Engineering +10

Stable carbon and nitrogen isotopic signatures of organic matter sources in near-shore areas of Lake Victoria, East Africa

John F. Machiwa · Journal of Great Lakes Research · 2010 · 46 citations

Stable Carbon, Organic Geochemistry, Carbon Sequestration +10

An empirical model of the fate of organic carbon in a mangrove forest partly affected by anthropogenic activity

John F. Machiwa, Rolf Hallberg · Ecological Modelling · 2002 · 38 citations

Organic Geochemistry, Biogeochemistry, Organic Carbon +6