Pesticide risk assessment in a lagoon ecosystem. Part II: Effect assessment and risk characterization

Villa, Sara; Vighi, Marco; Casini, Silvia; Focardi, Silvano

doi:10.1002/etc.5620220435

Cited by 11 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It should be taken into account that water quality objectives for pesticides are often far below analytical detection limits [27] (Table 4) and that the lack of any positive experimental finding does not necessarily mean absence of risk. In particular, the possibility of predicting low concentrations could be relevant when assessing the potential risk of chemicals with the same mode of action, such as carbamates and phosphorganic acetyl colinesterase inhibitors, capable of exerting additive effects in a mixture [20]. Moreover, the time variability of concentrations, in particular in rivers, makes reliable and cost‐effective monitoring difficult.…”

Section: Discussionmentioning

confidence: 99%

“…Ten pesticides (Table 4) were selected as tracers according to their analytical capabilities, loads, physical‐chemical properties, and fate patterns. A greater number of insecticides, compared with herbicides and fungicides, was chosen, mainly because of their high risk potential for the aquatic ecosystem, considering also the possibility of additive affects due to the same toxicological mode of action as acetyl cholinesterase inhibitors [20].…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Pesticide risk assessment in a lagoon ecosystem. Part I: Exposure assessment

Villa

Finizio

Vighi

2003

Enviro Toxic and Chemistry

Self Cite

View full text Add to dashboard Cite

This work is the first step of a research project on pesticide risk assessment for a coastal lagoon ecosystem (Orbetello lagoon, central Italy). Pesticide exposure was evaluated by means of predictive and experimental approaches. Predicted environmental concentrations (PECs) for water and sediments were estimated using fugacity-based multimedia models. Pesticide loads were quantified through a study of the use to which agricultural land was put in the study area. Multimedia fate models were used to predict the environmental concentration of 29 active ingredients (mainly insecticides and herbicides) selected among the most widely used within the catchment basin. Worst-case environmental scenarios were developed for the application of these models, in agreement with the precautionary principle. Experimental monitoring was performed on 10 selected chemicals. To assess the value and limitations of predictive and experimental approaches, calculated PECs and monitoring results were compared and discussed. Combined modeling and monitoring approaches have been found to be the best way to date to assess proper exposure.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Pesticide risk assessment in a lagoon ecosystem. Part I: Exposure assessment

Villa

Finizio

Vighi

2003

Enviro Toxic and Chemistry

Self Cite

View full text Add to dashboard Cite

show abstract

“…Establishment of Environmental Quality Standards is also based on this methology. On the other hand, it is a somewhat uncommon practice to perform TGD application tests with a retrospective aiming at performing assessment of substances in the field (Villa et al, 2003a;Villa et al, 2003b).…”

Section: Based On Concepts Associated With Ecological Risk Assessmentmentioning

confidence: 99%

Environmental risk assessment: A critical approach of the European TGD in an in situ application

Guerit

Bocquené

James

et al. 2008

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

The aim of this study was to test field relevance of the prospective methodology for the assessment of environmental risk described in the EU technical guidance document (TGD) [European Commission 2003. Technical guidance document in support of Commission Directive 93/67/EEC on Risk assessment for new notified substances and Commission Regulation (EC) No 1488/94 on Risk assessment for existing substances and Commission Directive (EC) 98/8 on biocides, second ed. European Commission, Luxembourg, Part 1, 2 and 3, 760 pp.]. To achieve this goal, an environmental risk assessment was performed according to the TGD for two major contaminants, atrazine and diuron, that are present in the Seine River estuary (France) and listed in the EU Water Framework Directive (Directive 2000/60/CE). Results showed that atrazine presented a source of risk in the upper- and mid-estuary throughout the 1993 and 1996 spring seasons. Diuron introduced a risk into the same areas throughout spring periods of 1993-2005. Results are discussed and some suggestions for a more realistic in situ risk assessment are given. For the computation of a more relevant PNEC for pesticides, their specific mode of action should be taken into consideration as well as ecotoxicological data on species endemic to the considered area.

show abstract

“…The snowmelt transports these chemicals for years into glacier lakes, where they accumulated in the sediment. Thus, glaciers are secondary sources for re-entry of POPs in the environment (Villa et al, 2003, 2004, 2006). Chemical analyses detected concentrations of up to 43 ng/L for PCBs and up to 168 μg/L for PAHs in contaminated glacial areas (Cappa et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Polychlorinated Biphenyl (PCB)-Degrading Potential of Microbes Present in a Cryoconite of Jamtalferner Glacier

et al. 2017

View full text Add to dashboard Cite

Aiming to comprehensively survey the potential pollution of an alpine cryoconite (Jamtalferner glacier, Austria), and its bacterial community structure along with its biodegrading potential, first chemical analyses of persistent organic pollutants, explicitly polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) as well as polycyclic aromatic hydrocarbons (PAHs), revealed a significant contamination. In total, 18 PCB congeners were detected by high resolution gas chromatography/mass spectrometry with a mean concentration of 0.8 ng/g dry weight; 16 PAHs with an average concentration of 1,400 ng/g; and 26 out of 29 OCPs with a mean concentration of 2.4 ng/g. Second, the microbial composition was studied using 16S amplicon sequencing. The analysis revealed high abundances of Proteobacteria (66%), the majority representing α-Proteobacteria (87%); as well as Cyanobacteria (32%), however high diversity was due to 11 low abundant phyla comprising 75 genera. Biodegrading potential of cryoconite bacteria was further analyzed using enrichment cultures (microcosms) with PCB mixture Aroclor 1242. 16S rDNA analysis taxonomically classified 37 different biofilm-forming and PCB-degrading bacteria, represented by Pseudomonas, Shigella, Subtercola, Chitinophaga, and Janthinobacterium species. Overall, the combination of culture-dependent and culture-independent methods identified degrading bacteria that can be potential candidates to develop novel bioremediation strategies.

show abstract

Pesticide risk assessment in a lagoon ecosystem. Part II: Effect assessment and risk characterization

Cited by 11 publications

References 26 publications

Pesticide risk assessment in a lagoon ecosystem. Part I: Exposure assessment

Pesticide risk assessment in a lagoon ecosystem. Part I: Exposure assessment

Environmental risk assessment: A critical approach of the European TGD in an in situ application

Polychlorinated Biphenyl (PCB)-Degrading Potential of Microbes Present in a Cryoconite of Jamtalferner Glacier

Contact Info

Product

Resources

About