Which effect does MITC have on mucous membranes?

Methyl isothiocyanate (MITC) is known for its irritant properties, particularly affecting mucous membranes. When exposure occurs, it can cause irritation that may lead to symptoms such as discomfort, burning, or inflammation in the affected areas. This characteristic emphasizes the importance of proper handling and safety precautions when working with materials that release MITC, such as certain fumigants used in pest control. Understanding this effect is crucial for ensuring the safety of applicators and anyone in proximity during fumigation procedures.

The other options suggest effects such as soothing, no effect, or hydrating, which do not accurately align with the properties of MITC. Its primary role involves irritation rather than any positive effects on mucous membranes.