Research

7, 藤井健吉、河野真貴子、井上知也、平井祐介、永井孝志、小野恭子、岸本充生、村上道夫 (2017)
レギュラトリーサイエンス(RS) のもつ解決志向性とリスク学の親和性〜薬事分野・食品安全分野・化学物質管理分野の事例分析からの示唆〜
日本リスク研究学会誌, 27(1), 11-22

6, 稲生圭哉、永井孝志、岩崎亘典 (2014)
農薬の定量的生態リスク評価における動態予測モデルの活用
環境科学会誌, 27(4), 248-260

5, 永井孝志 (2013)
リスク評価とリスク管理の位置づけを再構成する解決志向リスク評価
日本リスク研究学会誌, 23, 145-152

4, 早坂大亮、永井孝志、五箇公一 (2013)
農薬による生物多様性影響評価の重要性: 個体評価から群集評価へ：生物多様性に配慮した農薬管理の在り方
日本生態学会誌, 63, 193-206

3, 永井孝志 (2011)
環境水中重金属のスペシエーションと生物利用性
日本環境毒性学会誌, 14(1), 13-23

2, 永井 孝志 (2011)
化学物質のリスク評価と意思決定のギャップを埋める：農薬登録の意思決定
日本リスク研究学会誌, 21(2), 73-82

1, 水口 亜樹、永井 孝志、浅井 元朗、池田 浩明 (2011)
農業に由来する生態リスクの統合的評価に向けて：農薬・遺伝子組換え作物・雑草防除の生態リスク評価から全体のつながりを意識する
日本生態学会誌, 61(2), 133-153

47, Nagai T (2018)
A novel, efficient, and ecologically relevant bioassay method using aquatic fungi and fungal‐like organism for fungicide ecological effect assessment
Environmental Toxicology and Chemistry, in press  

46, Yabuki Y, Ono J, Nagai T, Inao K, Tanimori S (2018)
Determining the suitability of a polar organic chemical integrated sampler (POCIS) for the detection of pesticide residue in the Ishikawa River and its tributary in Osaka, Japan
Journal of Pesticide Science, 43(1), 18-23

45, Iwasaki Y, Jusup M, Shibata K, Nagai T, Kashiwada S (2017)
Lower sensitivity of cyprinid fishes to three acetylcholinesterase inhibitor pesticides: an evaluation based on no effect concentrations
Limnology, 19(1), 1-5

44, Nagai T (2017)
Predicting herbicide mixture effects on multiple algal species using mixture toxicity models
Environmental Toxicology and Chemistry, 36(10), 2624-2630  

43, 谷地俊二、永井孝志、稲生圭哉 (2017)
全国350の流量観測地点を対象とした水田使用農薬の河川水中予測濃度の地域特異性の解析
日本農薬学会誌, 42(1), 1-9

42, 永井孝志 (2016)
除草剤の作用機作と水生一次生産者の感受性種間差の関係
環境毒性学会誌, 19(2), 83-91

41, Yabuki Y, Nagai T, Inao K, Ono J, Aiko N, Ohtsuka N, Tanaka H, Tanimori S (2016)
Temperature dependence on the pesticide sampling rate of polar organic chemical integrative samplers (POCIS)
Bioscience, Biotechnology, and Biochemistry, 80(10), 2069-2075

40, 岩崎亘典、稲生圭哉、永井孝志 (2016)
河川上流側の水稲作付面積率の算定手法の開発−国土数値情報と農林水産統計情報に基づく解析−
GIS -理論と応用-, 24(1), 31-38

39, Nagai T, De Schamphelaere KAC (2016)
The effect of binary mixtures of zinc, copper, cadmium, and nickel on the growth of the freshwater diatom Navicula pelliculosa and comparison with mixture toxicity model predictions
Environmental Toxicology and Chemistry, 35(11), 2765-2773  

38, 谷地俊二、永井孝志、勝又政和 (2016)
藻類の化学物質曝露期間とその後の回復期間におけるクロロフィル遅延発光の変動
環境毒性学会誌, 19(1), 35-46

37, 谷地俊二、永井孝志、稲生圭哉 (2016)
水田使用農薬の県別用途別使用量の簡便な推定方法の開発
日本農薬学会誌, 41(1), 1-10  

36, Nagai T (2016)
Ecological effect assessment by species sensitivity distribution for 68 pesticides used in Japanese paddy fields
Journal of Pesticide Science, 41(1), 6-14  

35, Nagai T, Taya K, Yoda I (2016)
Comparative toxicity of 20 herbicides to 5 periphytic algae and the relationship with mode of action
Environmental Toxicology and Chemistry, 35(2), 368-375  

34, Hayasaka D, Kuwayama N, Azuma T, Ishida T, Mano H, Inoue M, Nagai T, Sanchez-Bayo F, Goka K, Sawahata T (2015)
Different acute toxicity of fipronil baits on invasive Linepithema humile supercolonies and some nontarget ground arthropods
Ecotoxicology, 24(6), 1221-1228

33, Nagai T, Taya K (2015)
Estimation of herbicide species sensitivity distribution using single-species toxicity data and information on the mode of action
Environmental Toxicology and Chemistry, 34(3), 677-684

32, 永井孝志、加茂将史 (2014)
藻類に対する金属複合毒性のモデリング：Biotic Ligand Model, 濃度加算, 独立作用の比較
環境毒性学会誌, 17(2), 57-68

31, Nagai T (2014)
Algal population growth model integrated with toxicokinetics for ecological risk assessment under time-varying pesticide exposure
Human and Ecological Risk Assessment, 20, 641-657  

30, Nagai T, Taya K, Annoh H, Ishihara S (2013)
Application of a fluorometric microplate algal toxicity assays for riverine periphytic algal species
Ecotoxicology and Environmental Safety, 94, 37-44  

29, Hayasaka D, Suzuki K, Nomura T, Nishiyama M, Nagai T, Sanchez-Bayo F, Goka K (2013)
Comparison of acute toxicity of two neonicotinoid insecticides, imidacloprid and clothianidin, to five cladoceran species
Journal of Pesticide Science, 38(1), 44-47

28, Nagai T, Yokoyama A (2012)
Comparison of ecological risks of insecticides for nursery-box application using species sensitivity distribution
Journal of Pesticide Science, 37(3), 233-239  

27, Nagai T, Horio T, Yokoyama A, Kamiya T, Takano H, Makino T (2012)
Ecological risk assessment of on-site soil washing technique with iron(III) chloride in cadmium contaminated paddy field
Ecotoxicology and Environmental Safety, 80, 84-90  

26, Iwafune T, Ara T, Ishihara S, Yokoyama A, Nagai T, Horio T (2012)
Investigation of concentrations of paddy herbicides and their transformation products in the Sakura River, Japan, and toxicity of the compounds to a diatom and a green alga
Bulletin of Environmental Contamination and Toxicology, 88, 38-42

25, Nagai T, Ishihara S, Yokoyama A, Iwafune T (2011)
Effects of four rice paddy herbicides on algal viability and the relationship with population recovery
Environmental Toxicology and Chemistry, 30(8), 1898-1905  

24, Iwafune T, Yokoyama A, Nagai T, Horio T (2011)
Evaluation of the risk of mixtures of paddy insecticides and their transformation products to aquatic organisms in the Sakura River, Japan
Environmental Toxicology and Chemistry, 30(8), 1834-1842

23, Nagai T, Tomioka N, Kawasaki T, Imai A, Matsushige K (2011)
In situ growth rate of Microcystis spp. and their growth limiting factors: An application of cellular RNA content
Limnology, 12(3), 235-243  

22, 永井孝志、稲生圭哉、横山淳史、岩船敬、堀尾剛 (2011)
11種の水稲用除草剤の確率論的生態リスク評価
日本リスク研究学会誌, 20(4), 279-291  

21, Iwafune T, Inao K, Horio T, Iwasaki N, Yokoyama A, Nagai T (2010)
Behavior of paddy pesticides and major metabolites in the Sakura River, Ibaraki, Japan
Journal of Pesticide Science, 35(2), 114-123

20, Oyama Y, Matsushita B, Fukushima T, Chem J, Nagai T, Imai A (2010)
Testing spectral decomposition algorithm (SDA) for different phytoplankton species by a simulation based on the tank experiments
International Journal of Remote Sensing, 31(6), 1605-1623

19, 永井孝志、恒見清孝、東海明宏 (2009)
大気拡散モデルによる大気中アンチモンの曝露解析
環境科学会誌, 22(2), 61-72

18, Yokoyama A, Ohtsu K, Iwafune T, Nagai T, Ishihara S, Kobara Y, Horio T, Endo S (2009)
Sensitivity difference to insecticides of a riverine caddisfly, Cheumatopsyche brevilineata (Trichoptera: Hydropsychidae), depending on the larval stages and strains
Journal of Pesticide Science, 34(1), 21-26

17, Yokoyama A, Ohtsu K, Iwafune T, Nagai T, Ishihara S, Kobara Y, Horio T, Endo S (2009)
A useful new insecticide bioassay using first-instar larvae of a net-spinning caddisfly, Cheumatopsyche brevilineata (Trichoptera: Hydropsychidae)
Journal of Pesticide Science, 34(1), 13-20

16, Tomioka N, Nagai T, Kawasaki T, Imai A, Matsusige K, Kohata K (2008)
Quantification of Microcystis in a eutrophic lake by simple DNA extraction and SYBR Green real-time PCR
Microbes and Environments, 23(4), 306-312

15, 永井孝志、稲生圭哉、堀尾剛 (2008)
不確実性を考慮した農薬の確率論的生態リスク評価：水稲用除草剤シメトリンのケーススタディー
日本農薬学会誌, 33(4), 393-402

14, Nagai T, Imai A, Matsushige K, Yokoi K, Fukushima T (2008)
Short-term temporal variations in iron concentration and speciation in a canal during a summer algal bloom
Aquatic Sciences, 70(4), 388-396

13, Kamo M, Nagai T (2008)
An application of biotic ligand model to predict the toxic effects of metal mixtures
Environmental Toxicology and Chemistry, 27(7), 1479-1487

12, 永井孝志, 恒見清孝, 川本朱美 (2007)
河川水中における重金属類のスペシエーション：Diffusive Gradients in Thin-films法による分析と化学平衡モデルによる推定
陸水学雑誌, 68(3), 391-401

11, Nagai T, Imai A, Matsushige K, Fukushima T (2007)
Growth characteristics and growth modeling of Microcystis aeruginosa and Planktothrix agardhii under iron limitation
Limnology, 8(3) 261-270  

10, Nara F, Imai A, Yoneda M, Matsushige K, Komatsu K, Nagai T, Shibata Y, Watanabe T (2007)
Seasonal variation in sources of dissolved organic carbon in a lacustrine environment revealed by paired isotopic measurements (Δ14C and δ13C)
Radiocarbon, 49(2) 767-773

9, Oyama Y, Matsushita B, Fukushima T, Nagai T, Imai A (2007)
A new algorithm for estimating chlorophyll-a concentration from multi-spectral satellite data in Case II waters -A simulation based on a controlled laboratory experiment-
International Journal of Remote Sensing, 28(7), 1437-1453

8, Nagai T, Imai A, Matsushige K, Yokoi K, Fukushima T (2007)
Dissolved iron and its speciation in a shallow eutrophic lake and its inflowing rivers
Water Research, 41(4), 775-784  

7, Nagai T, Imai A, Matsushige K, Fukushima T (2006)
Effect of iron complexation with dissolved organic matter on the growth of cyanobacteria in a eutrophic lake
Aquatic Microbial Ecology 44(3), 231-239

6, Nagai T, Imai A, Matsushige K, Fukushima T (2005)
Limiting nutrients on the growth of bloom-forming cyanobacteria with special focus on iron speciation
Verhandlungen Internationale Vereinigung fur theoretische und angewandte Limnologie, 29(2) 949-952

5, Nagai T, Imai A, Matsushige K, Yokoi K, Fukushima T (2004)
Voltammetric determination of dissolved iron and its speciation in freshwater
Limnology 5(2), 87-94    

4, Choi K, Imai A, Matsushige K, Nagai T, Kim YH, Kim B (2003)
Photoalteration in biodegradability and chemical compositions of algae-derived dissolved organic matter
Korean Journal of Limnology 36(3), 235-241

3, Imai A, Matsushige K, Nagai T (2003)
Triharomethane formation potential of dissolved organic matter in a shallow eutrophic lake
Water Research 37(17), 4284-4294

2, Nagai T, Ru S, Katoh A, Dong S, Kuwabara T (2001)
An extracellular hemolysin homolog from cyanobacterium Synechocystis sp. PCC6803.
Proceedings of the 12th International Congress on Photosynthesis, S36-010

1, Kuwabara T, Nagai T, Ru S, Dong S (2000)
Assessment of interaction between scallop and cyanobacteria with special focus on cyanobacterial hemolysin
Biosystem Studies 3, 205