Abstract
A wide range of pharmaceuticals and personal care products (PPCPs) are present in the environment, and many of their adverse effects are unknown. The environmental risk assessment of 26 PPCPs of relevant consumption and occurrence in the aquatic environment in Spain was accomplished in this research. Based on the ecotoxicity values obtained by bioluminescence and respirometry assays and by predictions using the US EPA ecological structure–activity relationship (ECOSAR™), the compounds were classified following the Globally Harmonized System of Classification and Labelling of Chemicals. According to the criteria of the European Medicines Agency, the real risk of impact of these compounds in wastewater treatment plants (WWTPs) and in the aquatic environment was predicted. In at least two ecotoxicity tests, 65.4 % of the PPCPs under study showed high toxicity or were harmful to aquatic organisms. The global order of the species’ sensitivity to the PPCPs considered was as follows: Vibrio fischeri (5 min) > Vibrio fischeri (15 min) > algae > crustaceans > fish > biomass of WWTP. Acetaminophen, ciprofloxacin, clarithromycin, clofibrate, ibuprofen, omeprazole, triclosan, parabens and 1,4-benzoquinone showed some type of risk for the aquatic environments and/or for the activated sludge of WWTPs. Development of acute and chronic ecotoxicity data, the determination of predicted and measured environmental concentrations of PPCPs, the inclusion of metabolites and transformation products and the evaluation of mixtures of these compounds will allow further improvements of the results of the ERAs and, finally, to efficiently identify the compounds that could affect the environment.
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Abbreviations
- ASA:
-
Acetylsalicylic acid
- B:
-
Bioaccumulation
- EC50 :
-
Half maximal effective concentration
- ECOSAR, US EPA:
-
Ecological structure–activity relationship
- EMEA:
-
European medicines agency
- EPA:
-
United States environmental protection agency
- EPA EPI SuiteTM:
-
Estimation programs interface suite™ developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation
- ERA:
-
Environmental risk assessment
- EU TGD:
-
European Union Technical Guidance Document
- GHS:
-
Globally harmonized system of classification and labeling of chemicals
- LC50:
-
Half maximal lethal concentration
- MLSS:
-
Mixed liquor suspended solids
- MRERA:
-
More restrictive ranking of environmental risk assessment
- NOEC:
-
No observed effect concentration
- P:
-
Persistence
- PCPs :
-
Personal care products
- PEC:
-
Predicted environmental concentration
- PECSimple :
-
Simple predicted environmental concentration
- PECR :
-
Refined predicted environmental concentration
- PhAC:
-
Pharmaceutical active compound
- PNEC:
-
Predicted no effect concentration
- PPCPs:
-
Pharmaceutical and personal care products
- (Q)SARs:
-
Quantitative structure–activity relationships
- RQ:
-
Risk quotient
- RQS:
-
Simple risk quotient
- RQR :
-
Refined risk quotient
- RQMEC :
-
Risk quotient calculated with MEC
- RQWM :
-
Risk quotient in WWTPs without metabolization in humans
- RQWWTPs :
-
Risk quotient in the influent of WWTPs considering metabolization in humans
- SARs:
-
Structure activity relationships
- T:
-
Toxicity
- WWTP:
-
Wastewater treatment plant
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Acknowledgments
The present study was supported by the MAPFRE Foundation of Spain (No. MA/11/AYU/138) and the scholarship grants of the Carabobo University of Venezuela (No. CD-3417 and No. CD-2155).
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The authors declare that they have no conflict of interest.
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Ortiz de García, S.A., Pinto Pinto, G., García-Encina, P.A. et al. Ecotoxicity and environmental risk assessment of pharmaceuticals and personal care products in aquatic environments and wastewater treatment plants. Ecotoxicology 23, 1517–1533 (2014). https://doi.org/10.1007/s10646-014-1293-8
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DOI: https://doi.org/10.1007/s10646-014-1293-8