Thiophanate-methyl

Thiophanate-methyl was developed in the 1960s as a systemic fungicide with broad-spectrum activity against fungal pathogens in agriculture [1]. The compound was rapidly adopted for use on fruits, vegetables, and ornamental plants throughout the 1970s and 1980s. Its systemic activity and wide spectrum of effectiveness made it particularly valuable for managing fungal diseases that were difficult to control with contact fungicides [2]. Thiophanate-methyl became one of the most widely used fungicides globally, with production and use continuing to increase into the 21st century. Environmental and health concerns have led to periodic regulatory reviews, with restrictions imposed in some jurisdictions. Today, thiophanate-methyl remains a commonly used fungicide despite ongoing scrutiny regarding safety and environmental persistence [3].

Agricultural workers applying thiophanate-methyl fungicides face occupational exposure through inhalation and dermal contact. Greenhouse and nursery employees encounter chronic occupational exposure. Fruit and vegetable pickers may contact residues on harvested crops. Consumers experience minimal dietary exposure through food residues. Environmental exposure occurs through contaminated water and soil.

Thiophanate-methyl shows moderate toxicity in animal studies with potential reproductive and developmental effects at high doses. The compound acts as a potential endocrine disruptor. Chronic exposure raises concerns for long-term health effects. Animal studies show effects on growth and development at elevated doses. Environmental persistence in soil suggests potential for chronic exposure.

Agricultural workers and pesticide applicators face occupational exposure risk. Greenhouse and nursery workers encounter chronic exposure. Fruit and vegetable pickers may have residue exposure. Pregnant women and children are vulnerable to potential reproductive effects. Communities in agricultural areas with contaminated water face chronic exposure.