highly significantp < 0.01
Independent sample t test showed highly significant variation ( p < 0.01) of o , p ʹ-DDE, p , p ʹ-DDE, o , p ʹ-DDD, o , p ʹ-DDT, p , p ʹ-DDT in water, p , p ʹ-DDD in air, while cis-chlordane was found in the soil of both lakes.