माखासे बिसफोर , जेरैबादि लिद , मारकुरि , आरसेनिक , तलुइन आरो पि . सि . बिया निउर' जौगासार गाज्रिजानायफोरनि मोजाङै मोनथिजानाय जाहोनफोर ।
Certain toxins such as lead mercury arsenic toluene and PCB are well known causes of neuro developmental disorders .