Tolerable limits of lead and fluorides drinking water according to international standard are respectively

Tolerable limits of lead and fluorides drinking water according to int

1.	Tolerable limits of lead and fluorides drinking water according to international standard are respectively
Answer» 50 PPM and 3 ppm 50 ppm and 1 ppm 50 ppm and 5 ppm 1ppm and 50 ppm Solution :50 ppm and 1 ppm