Ecotoxicity Evaluation of Pure Peracetic Acid (PAA) after Eliminating Hydrogen Peroxide from Commercial PAA
| Autor: | Manuela Antonelli, Henrik Rasmus Andersen, Ravi Kumar Chhetri, Silvia Di Gaetano, Andrea Turolla |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Health
Toxicology and Mutagenesis Disinfectant Daphnia magna chemistry.chemical_element lcsh:Medicine hydrogen peroxide 010501 environmental sciences 01 natural sciences Article chemistry.chemical_compound peracetic acid Peracetic acid Chlorine Animals Ecotoxicity Hydrogen peroxide disinfection 0105 earth and related environmental sciences EC50 biology ecotoxicity lcsh:R Public Health Environmental and Occupational Health 04 agricultural and veterinary sciences biochemical phenomena metabolism and nutrition biology.organism_classification Aliivibrio fischeri Disinfection Potassium permanganate Daphnia chemistry 040102 fisheries 0401 agriculture forestry and fisheries Water Pollutants Chemical Disinfectants Nuclear chemistry |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 17, Iss 5031, p 5031 (2020) Chhetri, R K, Gaetano, S D, Turolla, A, Antonelli, M & Andersen, H R 2020, ' Ecotoxicity evaluation of pure peracetic acid (PAA) after eliminating hydrogen peroxide from commercial paa ', International Journal of Environmental Research and Public Health, vol. 17, no. 14, 5031 . https://doi.org/10.3390/ijerph17145031 International Journal of Environmental Research and Public Health Volume 17 Issue 14 |
| ISSN: | 1661-7827 1660-4601 |
| Popis: | In recent years, peracetic acid (PAA) has gained a lot of attention as an alternative disinfectant to chlorine-based disinfectants in the water industry. Commercial PAA solutions contain both PAA and hydrogen peroxide (HP), and the degradation of HP is slower than PAA when it is used for disinfection. All previous toxicity studies have been based on commercial PAA, and variance in toxicity values have been observed due to different PAA:HP ratios. In this study, the ecotoxicity of pure PAA was studied, eliminating HP from the commercial PAA mixture using potassium permanganate. Ecotoxicity data were obtained by conducting a battery of ecotoxicity tests: bioassays using Vibrio fischeri (V. fischeri), Daphnia magna (D. magna), and Pseudokirchneriella subcapitata (P. subcapitata). The effect concentration (EC50) of pure PAA was 0.84 (a 95% confidence interval of 0.78&ndash 0.91) mg/L for V. fischeri and 2.46 (2.35&ndash 2.58) mg/L for P. subcapitata, whereas the lethal concentration (LC50) was 0.74 (0.55&ndash 0.91) mg/L for D. magna. Compared to this, our previous study found that the EC50 values of commercial PAA towards V. fischeri and P. subcapitata were 0.42 (0.41&ndash 0.44) and 1.38 (0.96&ndash 1.99) mg/L, respectively, which were lower than pure PAA, whilst the LC50 for D. magna was 0.78 (0.58&ndash 0.95) mg/L. These results showed that pure PAA was less toxic to the most commonly used aquatic species for toxicity tests compared to commercial PAA, except for D. magna. |
| Databáze: | OpenAIRE |
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