Question

Which of the following can be used for decontamination of nitro aromatic pesticides from the soil?

(a) Ex situ techniques

(b) In situ techniques

(c) Poly-nitro derivatives

(d) Amino aromatics

This question was posed to me during an internship interview.

Enquiry is from Microbial Transformations of Pesticides in portion Microbial Transformations of Pesticides of Environmental Biotechnology

Answer 1

The correct answer is (a) Ex situ techniques

Easiest explanation: Ex situ techniques can be used for decontamination of nitro aromatic pesticides from the soil which uses whole cell or enzyme and then by immobilizing it on a suitable matrix, Ex situ bioremediation of the nitro aromatic pesticides is done easily. In situ techniques are not preferable over Ex situ techniques. Whereas, Poly-nitro derivatives and Amino aromatics are degraded by aerobic and anaerobic degradation of nitro-aromatics by microbes.