CBSE Class 11-science Answered
What are the harmful facts related to polynuclear hydrocarbons?
Asked by Topperlearning User | 24 Jul, 2014, 02:37: PM
Expert Answer
- The polynuclear aromatic hydrocarbons penetrate the body rapidly and reach to the fat containing tissues.
- Short-term low exposure to naphthalene may cause eye and skin irritation. If naphthalene is ingested it has the potential to cause hemolytic anaemia, a condition that involves the breakdown of red blood cells. Naphthalene is a suspected human carcinogen, and has been proven to cause damage to the kidneys and to the liver. Higher incidences of lung and skin tumors have been reported for people who have been occupationally exposed to naphthalene and other Polynuclear aromatic hydrocarbons.
- An exposure to Anthracene can cause skin and eye irritation. Repeated exposure may cause alteration of skin pigments as well as cancerous growth. Inhaled anthracene can cause bronchitis like symptoms. There is limited information on human reproductive implications. Anthracene may cause genetic mutations in cells.
- Phenanthrene is also a skin and eye irritant, with increasing effects in sunlight due to photosensitization. There is currently no data available for human oral and inhalation exposure. It is however, a suspected carcinogen, although there is no data for humans.
Answered by | 24 Jul, 2014, 04:37: PM
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