Journal of health & pollution · 2015
Mancozeb Residue on Tomatoes in Central Uganda.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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Kaye Emmanuel, Nyombi Antony, Mutambuze Innocent Louis, Muwesa Ruth
Аннотация
BACKGROUND: Mancozeb belongs to a group of pesticides known as dithiocarbamates (DTC) that are a non-systemic group of pesticides extensively used in Uganda to protect crops from fungal diseases.
OBJECTIVES: This study was done in 5 selected districts of Central Uganda with a focus on markets and farms to investigate the current mancozeb concentrations on tomatoes and identify key areas of improvement to minimize human exposure.
METHODS: Tomato samples were analyzed for mancozeb residue determined as carbon disulfide (CS2) by gas chromatography-mass spectrometer (GC-MS).
RESULTS: All the samples analyzed had detectable concentrations of mancozeb residue. It was observed that farm samples had mean concentrations of 1.03±0.28 mg/kg, while market samples had 0.77±0.49 mg/kg. The study also found that farmers applied 3-6 times the dosage of mancozeb recommended by manufacturers. Furthermore, the observed pre-harvest interval after application of mancozeb was 1-2 days as opposed to 3-7 days set by manufacturers.
CONCLUSIONS: The observed practices at farms are likely to put farmers and final consumers at a risk of exposure to dithiocarbamates.
OBJECTIVES: This study was done in 5 selected districts of Central Uganda with a focus on markets and farms to investigate the current mancozeb concentrations on tomatoes and identify key areas of improvement to minimize human exposure.
METHODS: Tomato samples were analyzed for mancozeb residue determined as carbon disulfide (CS2) by gas chromatography-mass spectrometer (GC-MS).
RESULTS: All the samples analyzed had detectable concentrations of mancozeb residue. It was observed that farm samples had mean concentrations of 1.03±0.28 mg/kg, while market samples had 0.77±0.49 mg/kg. The study also found that farmers applied 3-6 times the dosage of mancozeb recommended by manufacturers. Furthermore, the observed pre-harvest interval after application of mancozeb was 1-2 days as opposed to 3-7 days set by manufacturers.
CONCLUSIONS: The observed practices at farms are likely to put farmers and final consumers at a risk of exposure to dithiocarbamates.