Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
Theme
Critical findings
79 results(4 / 4)
Determination of chromium in soil of Lodz gardens
2005B. Jankiewicz, B. Ptaszyński · Polish Journal of Environmental Studies · Poland
This study determined the levels of bioavailable and total chromium (III) and chromium (VI) in the soil of an allotment garden located in the center of Łódź, Poland. Chromium was measured using the spectrophotometric method and atomic absorption spectrometry. The research also examined the effects of iron and copper ions on the determination results.
Contamination & food safetyOrganic cycleAssessment of Wastewater Generation, Management Pattern and Its Re-use Potential In Urban India
2004R. B. Singh · IAHS-AISH publication · India
A study on wastewater management in 300 class-I cities and 23 metropolitan cities in India found that the total wastewater generated is approximately 158x10^8 l/day, with treatment capacity being only 375x10^7 l/day. In metropolitan cities, only 30% of wastewater is treated before disposal, and most cities only have primary treatment facilities. Untreated water is being used for urban agriculture, posing risks to public health and potential surface and groundwater pollution.
Contamination & food safetyOrganic cycleHealthUrban agriculture between allotment and market gardening: contributions to the sustainability of African and Asian cities
2002L.M. van den Berg · WIT transactions on ecology and the environment · Africa, Asia
Urban agriculture, despite severe competition for space, plays roles such as fresh food supply, leisure, supplementary income for the urban poor, and green space management. Case studies in Africa and Southeast Asia demonstrate the difficulty of maintaining these roles due to public health and environmental degradation concerns. Urban agricultural producers may rely on polluted streams for irrigation, cause soil erosion through inappropriate farming techniques, or poison surrounding residents with pesticides. The paper suggests that urban agriculture could be more beneficial to the urban system if treated by town planners as a normal urban function requiring both regulation and protection.
Contamination & food safetyEconomicsHealthOrganic cyclePolicyMetals in urban gardens ‐ effect of lime and sludge
1995James R. Preer, Ahmed N. Abdi, Harkewal S. Sekhon, George B. Murchison · Journal of Environmental Science and Health Part A Environmental Science and Engineering and Toxicology · Global
This study investigated cadmium (Cd) and zinc (Zn) concentrations in vegetables grown in community gardens on different urban soils. Vegetables from a low-pH urban soil without contamination history showed higher Cd and Zn levels than those from a reclaimed landfill with digested sewage sludge, and also higher than a low-metal, neutral-pH site. Liming on the low-pH site reduced Cd and Zn concentrations in beet, lettuce, radish, and Swiss chard leaves, reaching background levels after four years. The findings indicate that soil pH is more important than total soil Cd and Zn in determining vegetable metal availability.
Contamination & food safetyHealthCommunityOrganic cycle