Ozone Treatment for Pesticide-Contaminated Water

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-10-09 DOI:10.1007/s11270-025-08452-7

Tatyane Pereira dos Santos, Sérgio Rabello Alves, Ana Cristina Simões Rosa, Ruan Victor Ferreira Soares, Lilian Mendonça Penna, Henrique Vieira de Mendonça

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引用次数: 0

Abstract

Brazil is one of the largest consumers of pesticides worldwide. Using these chemical compounds in agriculture leads to serious environmental issues, such as contamination of surface and underground waters that supplies drinking water. This study aims to evaluate the degradation of seven types of pesticides: atrazine (atz), chlorpyrifos (cps), malathion (mlt), trifluralin (tfl), lambda-cyhalothrin (lcl), chlorothalonil (ctl), and trifloxystrobin (tft) mixed in water at a concentration of 1.0 ng mL⁻¹. The methodology was based on a chemical oxidation system with the application of ozone at a concentration of 2.0 g h⁻¹, with reaction times (RT) of 5—150 min. After the treatment with ozone, the samples went through solid phase extraction (SPE) with detection and quantification by gas chromatography coupled to triple quadrupole mass spectrometry (GC–MS/MS) and subsequent acute toxicity assay with Artemias Salinas (brine shrimp), to check whether the samples presented toxicity even after ozonation. As a result, detection limits were observed between 0.011 and 0.164 ng mL⁻¹ and quantification limits between 0.050 and 0.498 ng mL⁻¹, for the method of pesticides analyzing in water. Degradation by ozonation reached 100% for the pesticide’s atrazine, chlorpyrifos, malathion, trifluralin and lambda-cyhalothrin in up to 20 min of reaction, being considered “non-toxic” for the target species of this study. Trifloxystrobin reached 100% degradation in 120 min of reaction and chlorothalonil had a maximum percentage of degradation of 84%, for the RT of 150 min. The toxicity test for trifloxystrobin and chlorothalonil found the samples to be “toxic” to Artemias salinas.

Graphical Abstract

Abstract Image

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农药污染水的臭氧处理

巴西是世界上最大的农药消费国之一。在农业中使用这些化合物会导致严重的环境问题，例如供应饮用水的地表水和地下水受到污染。本研究旨在评估七种农药：阿特拉津（atz）、毒死蜱（cps）、马拉硫磷（mlt）、三氟灵（tfl）、高效氯氰菊酯（lcl）、百菌清（ctl）和三氯虫酯（tft）在浓度为1.0 ng mL−1的水中的降解情况。该方法基于化学氧化体系，臭氧浓度为2.0 g h−1，反应时间（RT）为5-150 min。样品经臭氧处理后，进行固相萃取（SPE）、气相色谱-三重四极杆质谱联用（GC-MS /MS）检测和定量，并以卤虾为原料进行急性毒性试验，检验臭氧处理后的样品是否存在毒性。结果表明，该方法的检出限为0.011 ~ 0.164 ng mL - 1，定量限为0.050 ~ 0.498 ng mL - 1。臭氧氧化对农药中的莠去津、毒死蜱、马拉硫磷、氟虫灵和高效氯氟氰菊酯的降解达到100%，反应时间长达20分钟，被认为是本研究目标物种的“无毒”。在反应时间为150 min时，三氯虫酯在120 min内达到100%的降解，百菌清的最大降解率为84%。对三氯虫胺和百菌清的毒性测试发现，这些样品对阿耳忒弥斯·萨利纳斯“有毒”。图形抽象

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.