With respect to the study done by Central Water commission on state rivers, consider the following statements:

Godavari river at Bhadrachalam, top the list with presence of toxic metals.

Large amounts of toxic metals may cause damaged or reduced mental and central nervous functions.

Which of the statements given above is/are correct?

Question

A recent study by the Central Water Commission found presence of more than one toxic metal beyond permissible limits in rivers of Telangana.
Samples collected from Godavari river at Bhadrachalam, top the list by revealing traces of a total four toxic metals - arsenic, cadmium, nickel and iron - beyond the permissible limits.
Peddavagu, a tributary of the Godavari flowing through wildlife areas of the Asifabad district, revealed higher than allowable presence of iron and nickel in its samples collected near Gandlapet village of Nizamabad district. Similar is the case with the samples analysed from Wyra river at Madhira of Khammam.
Kinnerasani, another tributary of the Godavari, displayed higher traces of chromium and nickel, in its samples from Sangam village of Khammam. Manjira, the drinking water source for Hyderabad, too was found to have higher than permissible limits of nickel.
The samples were tested for presence of arsenic, cadmium, chromium, copper, lead, nickel, iron and zinc.
Large amounts of any of these metals may cause damaged or reduced mental and central nervous functions, and long-term exposure may lead to slowly progressing physical, muscular, and neurological degenerative processes that mimic Alzheimer’s disease, Parkinson’s disease, muscular dystrophy and multiple sclerosis.

GKToday Admin · Accepted Answer

Both 1 & 2

A recent study by the Central Water Commission found presence of more than one toxic metal beyond permissible limits in rivers of Telangana.
Samples collected from Godavari river at Bhadrachalam, top the list by revealing traces of a total four toxic metals - arsenic, cadmium, nickel and iron - beyond the permissible limits.
Peddavagu, a tributary of the Godavari flowing through wildlife areas of the Asifabad district, revealed higher than allowable presence of iron and nickel in its samples collected near Gandlapet village of Nizamabad district. Similar is the case with the samples analysed from Wyra river at Madhira of Khammam.
Kinnerasani, another tributary of the Godavari, displayed higher traces of chromium and nickel, in its samples from Sangam village of Khammam. Manjira, the drinking water source for Hyderabad, too was found to have higher than permissible limits of nickel.
The samples were tested for presence of arsenic, cadmium, chromium, copper, lead, nickel, iron and zinc.
Large amounts of any of these metals may cause damaged or reduced mental and central nervous functions, and long-term exposure may lead to slowly progressing physical, muscular, and neurological degenerative processes that mimic Alzheimer’s disease, Parkinson’s disease, muscular dystrophy and multiple sclerosis.