Heavy metal content in rubbish bags used for separate collection of biowaste.
The heavy metal content of several rubbish bags used to collect the organic fraction of municipal solid waste (OFMSW) is shown in this paper. Nowadays, several public awareness campaigns carried out by municipalities have promoted rubbish bags based mainly on their appearance, without concern for their heavy metal content. A high amount of heavy metals was detected in some polyethylene bags promoted in different campaigns for OFMSW source-sorted collection, while compostable bags presented low quantities of heavy metals. Some other rubbish bags, as well as commercial bags, were also analysed for comparison. These results should be taken into account before promoting the use of one or other type of bag. Moreover, the rubbish bag manufacturers should reduce the heavy metal content in order to avoid heavy metal scattering in the environment, and also to reduce the consumption of raw materials.
Huerta-Pujol
Oscar
O
Department of Agri-Food Engineering and Biotechnology (DEAB), Escola Superior d'Agricultura de Barcelona, Universitat Politècnica de Catalunya, Esteve Terradas, 08860 Castelldefels, Spain. oscar.huerta@upc.edu
Soliva
Montserrat
M
Giró
Francesc
F
López
Marga
M
D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D005735:Garbage; D019216:Metals, Heavy / Q000032:analysis* / Q000737:chemistry; D020959:Polyethylene / Q000737:chemistry*; D014866:Waste Products
D004785:Environmental Pollutants; D019216:Metals, Heavy; D014866:Waste Products; D020959:Polyethylene