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An assessment of the risks associated with PCDDs and PCDFs following the application of sewage sludge to agricultural land in the UK 总被引:4,自引:0,他引:4
A model has been developed to describe the transfer of PCDDs and PCDFs from sludge-amended soils to the human foodchain. The model is conservative and assumes that all foods consumed by an individual are derived from sludge-amended soils. Predicted concentrations of PCDDs and PCDFs in potatoes, cereals, root vegetables and leafy vegetables were in close agreement with mean concentrations reported in the food survey conducted by MAFF in the UK. Predicted concentrations in milk were well below the Maximum Tolerable Concentration adopted by MAFF. Assuming a half-life of ten years in sludge-amended soils, the maximum estimated incremental daily intake (IDI) predicted by the model following ten applications of sludge to agricultural land was 0.80 pg I-TEQ kg−1 day−1, representing an increase of approximately 45% on current levels of background exposure. For an individual whose diet is solely derived from sludge-amended soils, the total exposure is predicted to be approximately 181 pg I-TEQ day−1 or 2.6 pg I-TEQ kg−1 day−1. This compares with an average background exposure of approximately 2 pg I-TEQ kg−1 day−1, well within the TDI of 10 pg I-TEQ kg−1 day−1 and indicates that the application of sewage sludge to agricultural land under the conditions assumed would not appear to present a significant health risk under the conservative scenarios considered in this assessment. 相似文献
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Aver Gustavo Francisco Espín Silvia Dal Corno Renata De Boni García-Fernández Antonio Juan Petry Maria Virginia 《Environmental science and pollution research international》2020,27(6):5971-5980
Environmental Science and Pollution Research - In this study, we determined the presence of organochlorine pesticides (OCPs) in back feathers from three raptor species, Phalcoboenus chimango,... 相似文献
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Maria Virginia Petry Vanda Simone da Silva Fonseca Lucas Krüger-Garcia Roberta da Cruz Piuco Jaqueline Brummelhaus 《Marine Biology》2008,154(4):613-621
The coastline of the state of Rio Grande do Sul (Brazil) is used annually as a migratory route by a number of seabird species.
Thirteen surveys were carried out between July 1997 and July 1998 to obtain information on the diet of Puffinus gravis, Puffinus griseus, and Puffinus puffinus along the coast of Rio Grande do Sul. Sampling efforts focused on dead beach-cast specimens. One hundred twenty-one stomach
content analyses were performed on P. gravis from a total of 238 specimens; 17 stomach content analyses were performed on P. griseus from a total of 54 specimens; and 25 stomach content analyses were performed on 25 P. puffinus from a total of 61 dead specimens. Cephalopods were the main prey found in the stomachs of the three species and were present
in 96% of the P. gravis stomachs. The following cephalopods were observed: Ommastrephidae, Gonatus antarcticus, Gonatus sp., Lycoteuthis lorigera, Lycoteuthis sp., Histioteuthis sp., Cycloteuthis sp., Loligo plei, Loligo sanpaulensis, Sepiidae, and Argonauta nodosa. The latter was the most abundant species in the three species of Puffinus. The following fish were identified from otoliths: Porichthys porosissimus, Ctenosciaena gracilicirrhus, Paralonchurus brasiliensis, Cynoscion guatucupa, and Trichiurus lepturus. There was also a high incidence of synthetic materials such as plastic, polyethylene and rubber. 相似文献
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The possibility of acquiring real-time concentration data is leading many indoor air quality and health researchers to the use of particle measuring instruments instead of the classic filtration approach. This paper summarizes a checklist of characteristics that have to be considered on the selection of such instruments and checks the compliance of three air monitoring devices suitable for environmental exposure researches. An evaluation table with desirable instrument technical, economic, and logistics characteristics was summarized in a checklist, and spec sheets of three air monitoring devices suitable for environmental exposure researches were checked. Technical, economic, and logistics aspects have to be considered. Suitability, measurement range, accuracy, resolution, and robustness are indispensable metrological characteristics. Only one instrument was in comply with it. A popular air monitoring device among environmental exposure researchers was checked and it failed the accuracy check. When selecting a particle measuring instrument, technical, economic, and logistics aspects have to be considered. Suitability, measurement range, accuracy, resolution, and robustness are indispensable metrological characteristics. When selecting an instrument for a study, a lack of information on the quality of results is a strong indication that it should not be considered, as study's response may be compromised. 相似文献
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G. Petry 《Die Naturwissenschaften》1960,47(17):402-403
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Roger A. Petry Zinaida Fadeeva Olga Fadeeva Helen Hassl?f ?sa Hellstr?m Jos Hermans Yoko Mochizuki Kerstin Sonesson 《Sustainability Science》2011,6(1):83-96
This paper examines how education for sustainable development (ESD) can be concretely advanced using the theoretical approaches
of sustainable consumption and production (SCP) and sustainable livelihoods (SL). Five case examples illustrate a diverse
set of strategic educational interventions focusing on: (1) education of specific organizational actors about these theoretical
frameworks illustrated with case examples (such as SCP training by the United Nations University Institute of Advanced Studies
[UNU-IAS] and CSR-Asia of government and business representatives), (2) regional education strategies focused on production
and consumption in specific sectors (such as the food sector in Sk?ne, Sweden), (3) social learning directed at innovation
for sustainable development (such as competitions of solar boats developed by universities in the region of Friesland, the
Netherlands), (4) education of consumers and firms made possible by the adoption of certification systems affirming SCP and
SL (such as Cradle-to-Cradle certification of a paper company in the Netherlands or the establishment of Fair Trade cities
in Sweden), or (5) reorienting communities to address underutilized productive physical capital within communities (such as
the sharing productive capital project in rural areas of Saskatchewan, Canada). The cases are drawn from the projects that
the UNU-IAS, four of its regional centers of expertise (RCE) on ESD and other affiliates have conducted. In addition to documenting
the educational processes emerging from specific regions, the paper highlights findings related to the success of these projects
and opportunities for further research, including regional and inter-regional approaches. 相似文献
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