Why is there a high demand for the development of chemosensors for bisulphite (HSO3−) detection?

Bisulphites have various beneficial applications, but anthropogenic activities significantly contribute to the atmospheric burden of sulfur compounds, which can be threatening to human health and the environment. Sulfur dioxide (SO2), a primary air contaminant, can be converted into bisulphites and sulfites when inhaled, causing asthmatic attacks, negatively influencing cardiovascular diseases, and lung cancer allergic reactions if inhaled excessively.

There is a high demand for chemosensors for bisulphite detection due to the significant threat to human health and the environment posed by sulfur compounds from anthropogenic activities, as inhaled sulfur dioxide can convert into bisulphites and sulfites, leading to serious health issues like asthma, cardiovascular problems, and lung cancer.