The viability of biofuel production on urban marginal land: An analysis of metal contaminants and energy balance for pittsburgh's sunflower gardens

Earth & Environmental Sciences

• marginal land 100%
• biofuel production 89%
• garden 74%
• energy balance 68%
• viability 66%
• pollutant 41%
• soil 30%
• land 26%
• production system 25%
• biofuel 24%
• environmental protection 22%
• analysis 18%
• heavy metal 17%
• calculation 12%
• monitoring 12%
• energy 11%
• method 5%

Agriculture & Biology

• energy balance 74%
• gardens 68%
• Helianthus annuus 68%
• biofuels 66%
• viability 53%
• metals 53%
• environmental protection 29%
• soil pollution 27%
• soil 23%
• volunteers 22%
• feedstocks 21%
• heavy metals 20%
• production technology 19%
• monitoring 15%
• energy 14%
• methodology 6%

Social Sciences

• biofuel 84%
• energy 48%
• environmental protection 23%
• monitoring 17%
• management 11%