FY 2013 Survey Results of Water Pollution by Agricultural Chemicals Used at Golf Courses September 25, 2014

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1 FY 2013 Survey Results of Water Pollution by Agricultural Chemicals Used at Golf Courses September 25, 2014 The Ministry of the Environment has collected the results of monitoring surveys of agricultural chemicals in golf course drains, which is conducted by local governments and regional environment offices in FY The monitoring surveys were conducted in accordance with the "Tentative Guideline for the Prevention of Water Pollution by Agricultural Chemicals Used in Golf Courses", hereinafter referred to as "the Guideline". 22,279 samples from 547 golf courses were measured in the survey and no sample of the drains exceeded reference values of concentrations set in the Guideline (Table 1 and Table 2). 1

2 Table 1 Summary of survey results Prefectures golf courses surveyed*** agricultural chemicals surveyed*** 2 Total number of samples ( *,** and *** ) The number of samples surveyed from drains samples exceeding the reference value Hokkaido 50 (2) 86 (83) 563 (146) 254 (146) 0 (0) Aomori 1 (1) 79 (79) 70 (70) 0 (0) 0 (0) Iwate 1 (1) 79 (79) 70 (70) 70 (70) 0 (0) Miyagi 3 (1) 91 (79) 182 (70) 0 (0) 0 (0) Akita (0) 0 Yamagata 1 (1) 79 (79) 70 (70) 70 (70) 0 (0) Fukushima Ibaraki 6 (1) 81 (79) 99 (70) 5 (0) 0 (0) Tochigi , Gunma 2 (2) 79 (79) 140 (140) 0 (0) 0 (0) Saitama ,305 1,056 0 Chiba Tokyo 3 (1) 82 (79) 106 (70) 93 (70) 0 (0) Kanagawa Yamanashi 1 (1) 79 (79) 70 (70) 0 (0) 0 (0) Nagano Niigata Toyama Ishikawa 1 (1) 79 (79) 70 (70) 70 (70) 0 (0) Fukui Gifu 3 (1) 79 (79) 81 (70) 0 (0) 0 (0) Shizuoka Aichi Mie 6 (1) 80 (79) 101 (70) 0 (0) 0 (0) Shiga 4 (2) 84 (79) 168 (140) 70 (70) 0 (0) Kyoto Osaka Hyogo , Nara Wakayama Tottori 2 (1) 100 (79) 201 (70) 0 (0) 0 (0) Shimane Okayama Hiroshima Yamaguchi 2 (1) 79 (79) 74 (70) 70 (70) 0 (0) Tokushima 1 (1) 80 (80) 71 (71) 0 (0) 0 (0) Kagawa Ehime 1 (1) 79 (79) 70 (70) 0 (0) 0 (0) Kochi 1 (1) 79 (79) 70 (70) 0 (0) 0 (0) Fukuoka , Saga (0) 0 (0) Nagasaki Kumamoto Oita 3 (1) 85 (81) 177 (72) 72 (72 0 (0) Miyazaki 1 (1) 81 (81) 72 (72) 0 (0) 0 (0) Kagoshima Okinawa 1 (1) 79 (79) 70 (70) 0 (0) 0 (0) 547 (24) 22,279 (1,691) 7,351 (638) 0 (0) Notes: * The total number of samples includes those collected 4 from ) drain, pond in golf courses, ) and water outside of golf courses. Notes: ** The total number of samples includes those surveyed by municipalities and reported to their prefectures. Notes: *** Figures in brackets are results measured by regional environment offices.

3 Table 2 Summary of survey results of each chemical Agricultural chemicals Reference Concentration samples value range detected * exceeding the samples * (mg/l) (mg/l) reference value EPN N.D. 0 3 MCPA-Isopropyl and MCPA-Sodium ** MCPA) N.D Asulam 2 N.D Acetamiprid 1.8 N.D Acephate N.D Azoxystrobin 4.7 N.D Amisulbrom 2 N.D Isoxathion 0.08 N.D Isoprothiolane 2.6 N.D Iprodione 3 N.D Imidacloprid 1.5 N.D Iminoctadine tris(albesilate) and Iminoctadine-triacetate ** 0.06 Iminoctadine) N.D Imibenconazole 0.26 N.D Indanofan N.D Indoxacarb and IndoxacarbMP ** 0.13 Indoxacarb) N.D Ethoxysulfuron 1 N.D Etofenprox 0.82 N.D Etridiazole 0.04 N.D Oxadiargyl 0.2 N.D Oxaziclomefone 0.24 N.D Oxine-Copper 0.4 N.D Cafenstrole 0.07 N.D Captan 3 N.D Cumyluron 0.2 N.D Kresoxim-Methyl 9.5 N.D. 0 6 Clothianidin 2.5 N.D Chlorantraniliprole 6.9 N.D Chlorimuron-Ethyl 2 N.D Chlorpyrifos 0.02 N.D Chlorothalonil 0.4 N.D Chloroneb 0.5 N.D Cyazofamid 4.5 N.D

4 Dicamba (MDBA) Dicamba-Potassium (MDBA-Potassium) and Dicamba-Dimethylammonium (MDBA-Dimethylammonium) ** 9.3 MDBA) N.D Cyclosulfamuron 0.8 N.D Dithiopyr N.D Siduron 3 N.D Difenoconazole 0.25 N.D Cyproconazole 0.3 N.D Simazine 0.03 N.D Simeconazole 0.22 N.D Spinetoram 0.63 N.D Diazinon 0.05 N.D Daimuron 7.9 N.D. 0 1 Thiamethoxam 0.47 N.D Thiuram (Thiram) 0.2 N.D Thiodicarb 0.8 N.D Thiophanate-Methyl 3 N.D Thiobencarb 0.2 N.D. 0 8 Thifluzamide 0.37 N.D Tetraconazole 0.1 N.D Tebuconazole 0.77 N.D Tebufenozide 0.42 N.D Triaziflam 0.23 N.D Triclopyr 0.06 N.D Trichlorfon (DEP) 0.05 N.D Trinexapac-Ethyl 0.15 N.D Triflumizole 0.5 N.D Trifloxystrobin 1 N.D. 0 6 Tolclofos-Methyl 2 N.D Napropamide 0.3 N.D Validamycin 12 N.D Halosulfuron-Methyl 2.6 N.D Hydroxyisoxazole 1 N.D Pyraflufen-Ethyl 4.5 N.D Pyributicarb 0.23 N.D Pyribencarb 1 N.D. 0 2 Fenitrothion (MEP) 0.03 N.D Ferimzone 0.5 N.D Butamifos 0.2 N.D Flazasulfuron 0.3 N.D

5 Furametpyr 0.1 N.D. 0 2 Fludioxonil 8.7 N.D Flucetosulfuron 1 N.D Flutolanil 2.3 N.D Flubendiamide 0.45 N.D Flupoxam 0.21 N.D Flurprimidol 0.39 N.D. 0 1 Prodiamine 1.7 N.D Propamocarb Hydrochloride 7.7 N.D Propiconazole 0.5 N.D Propyzamide 0.5 N.D Benomyl 0.2 N.D Permethrin 1 N.D Pencycuron 1.4 N.D Bensultap 0.9 N.D Penthiopyrad 2 N.D Pendimethalin 3.1 N.D Benfluralin 0.1 N.D Boscalid 1.1 N.D Phosethyl 23 N.D Foramsulfuron 13 N.D Polycarbamate 0.3 N.D Myclobutanil 0.63 N.D Mecoprop-Potassium, Mecoprop-Dimethylammonium, Mecoprop-P-Isopropylammonium, and Mecoprop-P-Potassium ** 0.47 Mecoprop) N.D Metamifop 0.11 N.D Metalaxyl and Metalaxyl-M ** 0.58 Metalaxyl) N.D Methoxyfenozide 2.6 N.D Metconazole 1 N.D Mepronil 1 N.D Total 0 7,351 Notes: * The number includes those data collected at drain outlets of golf courses. Notes:** For the sake of evaluation against the reference value, agricultural chemicals were measured in terms of the chemical shown in the column of reference value. 5

13.4% 43.4% 1.2% 2.8% 47 46, 389 = 47 47 7 3 450, 636 47 47 68 3 185, 556 = 47 47 7 4 3 21, 349 21, 045 25, 349 34% 31% 38% = 47 47 8 3 13 = 47 47 32 13 i, j = 1,..., n C j = S s=1 C β j,s j,s β j,s

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