Wastes may be sealed in concrete-filled drums and discharged to a depth of about 500 m. This specific statement is true for:
-radiation pollutants
U.V. radiation pollutants
-particle pollutants
All radioactive pollutants
As discussed in Radioactive waste --
This pollution occurs through radiations. Radiations are of two types:
- wherein
(i) Non ionising radiations: UV rays, IR rays, etc. UV rays cause skin burning, IR rays increases atmospheric temperature and leads to the green house effect.
(ii) Ionising radiation: X – rays, x-rays, beta-rays, gamma-rays cause genetic injury on mutation.
Hence, the correct option is (d).