Threshold limit value of three pollutants X, Y and Z are respectively 9 ppm, 20 ppm and 5 ppm. Which one is the most toxic ?

Threshold limit value of three pollutants X, Y and Z are respectively

1.	Threshold limit value of three pollutants X, Y and Z are respectively 9 ppm, 20 ppm and 5 ppm. Which one is the most toxic ?
Answer» Solution :LESSER the TLV value more is the toxicity of POLLUTANT. THUS Z is the most TOXIC.