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Kadokami K, Miyawaki T, Takagi S, Iwabuchi K, Towatari H, Yoshino T, Yagi M, Aita Y, Ito T, Takemine S, Nakajima D, Li X. Novel automated identification and quantification database using liquid chromatography quadrupole time-of-flight mass spectrometry for quick, comprehensive, cheap and extendable organic micro-pollutant analysis in environmental systems. Anal Chim Acta 2022; 1238:340656. [DOI: 10.1016/j.aca.2022.340656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/23/2022]
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Omagari R, Miyabara Y, Hashimoto S, Miyawaki T, Toyota M, Kadokami K, Nakajima D. The rapid survey method of chemical contamination in floods caused by Typhoon Hagibis by combining in vitro bioassay and comprehensive analysis. ENVIRONMENT INTERNATIONAL 2022; 159:107017. [PMID: 34875447 DOI: 10.1016/j.envint.2021.107017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/17/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
A novel comprehensive assessment system, consisting of a bioassay and chemical analysis, was developed to quickly evaluate the human health risk posed by toxic chemicals discharged due to natural disasters. To analyze samples quickly, a yeast-two-hybrid assay (Y2H) and GC-MS equipped with an automated identification and quantification system (AIQS-GC) were employed for the bioassay and chemical analysis, respectively. Since the analysis of 1000 substances by AIQS could be finished within two days following the Y2H assay for screening, this method would complete the risk assessment within three days. To confirm the applicability of this method in real environmental samples, we examined it using sediments circulated by Typhoon Hagibis. In one sediment sample, a distinctive response was indicated by the Y2H assay, and relatively high DDT concentration was identified by AIQS-GC in the same sediment. Therefore, using the results obtained from this method, a human health risk assessment of DDT was conducted, which indicated that the risk could be ignored. Additionally, the contamination of PAHs and alkanes was suggested as well. In this study, the pollution risk assessment could be completed within three days. Therefore, to our knowledge, this is the first study to demonstrate an assessment system with a rapid combination method for emergencies. Consequently, it is believed that this type of novel system would be needed in the future due to the increasing number of natural disasters predicted worldwide.
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Affiliation(s)
- Ryo Omagari
- Health and Environmental Risk Division, National Institute for Environmental Studies, Japan.
| | - Yuichi Miyabara
- Faculty of Science, Suwa Hydrobiological Station, Shinshu University, Japan
| | - Shunji Hashimoto
- Health and Environmental Risk Division, National Institute for Environmental Studies, Japan
| | - Takashi Miyawaki
- Faculty of Environmental Engineering, The University of Kitakyushu, Japan
| | - Masashi Toyota
- Faculty of Engineering, Water Environment and Civil Engineering, Shinshu University, Japan
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, Japan
| | - Daisuke Nakajima
- Health and Environmental Risk Division, National Institute for Environmental Studies, Japan; Graduate School of Pharmaceutical Sciences, Chiba University, Japan
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Tazunoki Y, Tokuda M, Sakuma A, Nishimuta K, Oba Y, Kadokami K, Miyawaki T, Ikegami M, Ueno D. Comprehensive analyses of agrochemicals affecting aquatic ecosystems: A case study of Odonata communities and macrophytes in Saga Plain, northern Kyushu, Japan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118334. [PMID: 34637834 DOI: 10.1016/j.envpol.2021.118334] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/30/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
The negative influence of agrochemicals (pesticides: insecticide, fungicide, and herbicide) on biodiversity is a major ecological concern. In recent decades, many insect species are reported to have rapidly declined worldwide, and pesticides, including neonicotinoids and fipronil, are suspected to be partially responsible. In Japan, application of systemic insecticides to nursery boxes in rice paddies is considered to have caused rapid declines in Sympetrum (Odonata: Libellulidae) and other dragonfly and damselfly populations since the 1990s. In addition to the direct lethal effects of pesticides, agrochemicals indirectly affect Odonata populations through reductions in macrophytes, which provide a habitat, and prey organisms. Due to technical restrictions, most previous studies first selected target chemicals and then analyzed their influence on focal organisms at various levels, from the laboratory to the field. However, in natural and agricultural environments, various chemicals co-occur and can act synergistically. Under such circumstances, targeted analyses might lead to spurious correlations between a target chemical and the abundance of organisms. To address such problems, in this study we adopted a novel technique, "Comprehensive Target Analysis with an Automated Identification and Quantification System (CTA-AIQS)" to detect wide range of agrochemicals in water environment. The relationships between a wide range of pesticides and lentic Odonata communities were surveyed in agricultural and non-agricultural areas in Saga Plain, Kyushu, Japan. We detected significant negative relationships between several insecticides, i.e., acephate, clothianidin, dinotefuran, flubendiamide, pymetrozine, and thiametoxam (marginal for benthic odonates) and the abundance of lentic Epiprocta and benthic Odonates. In contrast, the herbicides we detected were not significantly related to the abundance of aquatic macrophytes, suggesting a lower impact of herbicides on aquatic vegetation at the field level. These results highlight the need for further assessments of the influence of non-neonicotinoid insecticides on aquatic organisms.
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Affiliation(s)
- Yuhei Tazunoki
- Faculty of Agriculture, Saga University, Saga, Japan; IDEA Consultants, Inc., Fukuoka, Japan
| | - Makoto Tokuda
- Faculty of Agriculture, Saga University, Saga, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Ayumi Sakuma
- Faculty of Agriculture, Saga University, Saga, Japan
| | - Kou Nishimuta
- Faculty of Agriculture, Saga University, Saga, Japan
| | - Yutaro Oba
- Faculty of Agriculture, Saga University, Saga, Japan
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, Kitakyushu, Japan
| | - Takashi Miyawaki
- Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu, Japan
| | - Makihiko Ikegami
- National Institute of Environmental Studies (NIES), Tsukuba, Ibaraki, Japan
| | - Daisuke Ueno
- Faculty of Agriculture, Saga University, Saga, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.
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Nishimuta K, Ueno D, Takahashi S, Kuwae M, Kadokami K, Miyawaki T, Matsukami H, Kuramochi H, Higuchi T, Koga Y, Matsumoto H, Ryuda N, Miyamoto H, Haraguchi T, Sakai SI. Use of comprehensive target analysis for determination of contaminants of emerging concern in a sediment core collected from Beppu Bay, Japan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:115587. [PMID: 33261969 DOI: 10.1016/j.envpol.2020.115587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/18/2020] [Accepted: 09/01/2020] [Indexed: 06/12/2023]
Abstract
In recent years, concern about the release of anthropogenic organic micropollutants referred to as contaminants of emerging concern (CECs) has been growing. The objective of this study was to find potential CECs by means of an analytical screening method referred to as comprehensive target analysis with an automated identification and quantification system (CTA-AIQS), which uses gas and liquid chromatography combined with mass spectrometry (GC-MS and LC-QTOF-MS). We used CTA-AIQS to analyze samples from a sediment core collected in Beppu Bay, Japan. With this method, we detected 80 compounds in the samples and CTA-AIQA could work to useful tool to find CECs in environmental media. Among the detected chemicals, three PAHs (anthracene, chrysene, and fluoranthene) and tris(isopropylphenyl)phosphate (TIPPP) isomers were found to increase in concentration with decreasing sediment depth. We quantified TIPPP isomers in the samples by means of targeted analysis using LC-MS/MS for confirmation. The concentration profiles, combined with previous reports indicating persistent, bioaccumulative, and toxic properties, suggest that these chemicals can be categorized as potential CECs in marine environments.
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Affiliation(s)
- Kou Nishimuta
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Daisuke Ueno
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Japan.
| | - Shin Takahashi
- Graduate School of Agriculture, Ehime University, Japan; Center for Marine Environmental Studies, Ehime University, Japan
| | - Michinobu Kuwae
- Center for Marine Environmental Studies, Ehime University, Japan
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, Japan
| | | | - Hidenori Matsukami
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Japan
| | - Hidetoshi Kuramochi
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Japan
| | - Taiki Higuchi
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Yuki Koga
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Hideaki Matsumoto
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Noriko Ryuda
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Hideki Miyamoto
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Japan
| | - Tomokazu Haraguchi
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Japan
| | - Shin-Ichi Sakai
- Environment Preservation Research Center, Kyoto University, Japan
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Miyawaki T, Nishino T, Asakawa D, Haga Y, Hasegawa H, Kadokami K. Development of a rapid and comprehensive method for identifying organic micropollutants with high ecological risk to the aquatic environment. CHEMOSPHERE 2021; 263:128258. [PMID: 33297203 DOI: 10.1016/j.chemosphere.2020.128258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/24/2020] [Accepted: 09/02/2020] [Indexed: 06/12/2023]
Abstract
Currently, tens-of-thousands of chemicals are used in Japan, and their presence in and impact on aquatic ecosystems are poorly understood. Because conventional risk evaluation processes using target analysis and biological tests are time-consuming and costly, it is challenging to investigate all substances. Therefore, we aimed to develop a rapid and highly efficient screening scheme for identifying hazardous organic micropollutants (OMPs) in aquatic ecosystems. The scheme is divided into two steps: chemical analysis and risk evaluation. First, a comprehensive screening method (CSM) using gas chromatography (GC)-mass spectrometry (MS) and a database containing nearly 1000 compounds is used to identify known compounds, and nontargeted analysis is carried out using a GC × GC-time-of-flight (TOF)MS to detect compounds not registered in the database. Secondly, the predicted toxicity values obtained by quantitative structure-activity relationship (QSAR) are used to evaluate and rank the ecological risk of each detected OMPs and to identify priority compounds for detailed survey. To assess the proposed scheme, we surveyed representative urban rivers in Japan and ranked the potential toxicity of the identified compounds. The total number of compounds detected in water from each river ranged from 29 to 87, and the total concentrations ranged from 2.3 to 63 μg L-1. Pharmaceuticals and personal care products, such as crotamiton and galaxolide, were identified in the urban rivers and found to have high ecotoxicity rankings. Thus, the scheme combining CSM and risk evaluation using QSAR is a novel screening that can identify candidates with high ecological risk in aquatic environment rapidly and efficiently.
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Affiliation(s)
- Takashi Miyawaki
- Fukuoka Institute of Health and Environmental Sciences, Mukaizano39, Dazaifu, Fukuoka, Japan.
| | - Takahiro Nishino
- Tokyo Metropolitan Research Institute for Environmental Protection, 1-7-5 Shinsuna, Koto, Tokyo, Japan
| | - Daichi Asakawa
- Osaka City Research Center of Environmental Science, 8-34 Tojocho, Tennoji, Osaka, Osaka, Japan
| | - Yuki Haga
- Hyogo Prefectural Institute of Environmental Sciences, 3-1-18 Yukihira, Suma, Kobe, Hyogo, Japan
| | - Hitomi Hasegawa
- Nagoya City Environmental Science Research Institute, 5-16-8 Toyoda Minami, Nagoya, Aichi, Japan
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, Hibikino 1-1, Wakamatsu, Kitakyushu, Japan
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