期刊
ENVIRONMENTAL POLLUTION
卷 165, 期 -, 页码 124-132出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2012.02.019
关键词
Atomic absorption spectroscopy; Cadmium; Chromium; Contamination; Lead; Risk assessment; Road side; Urban gardens; Zinc
资金
- Technische Universitat Berlin
Food production by urban dwellers is of growing importance in developing and developed countries. Urban horticulture is associated with health risks as crops in urban settings are generally exposed to higher levels of pollutants than those in rural areas. We determined the concentration of trace metals in the biomass of different horticultural crops grown in the inner city of Berlin, Germany, and analysed how the local setting shaped the concentration patterns. We revealed significant differences in trace metal concentrations depending on local traffic, crop species, planting style and building structures, but not on vegetable type. Higher overall traffic burden increased trace metal content in the biomass. The presence of buildings and large masses of vegetation as barriers between crops and roads reduced trace metal content in the biomass. Based on this we discuss consequences for urban horticulture, risk assessment, and planting and monitoring guidelines for cultivation and consumption of crops. (C) 2012 Elsevier Ltd. All rights reserved.
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