Question

Findings of Case Study done by Chittranjan National Cancer Institute (CNCI), Kolkata –
Compared to other small cities, Delhi’s children show about 2 times more respiratory
problem symptoms. The symptoms were more common in children from low socio
economic status than in children from families with high socio-economic background.
It was also found that level of air pollutants is highest in a year during winter and
lowest during monsoon.
hi this is question
1)how change in season affect change in air pollution levels of a place.
2)Why are the symptoms of respiratory diseases more common in children from low socio-economic status?Why

holyday home work of science

Answer 1

1.   Air pollution levels of a place is affected by seasons and season changes.  In winter the temperatures are cooler, the air is more dense, and damp (humid perhaps).  The pollutants in the form of small particles and gas particles stay at lower altitudes in air.  They do not fly too far high in air perhaps. So people breath in polluted air a lot. In winter or before winter, some of the plants and trees shed down leaves.  Perhaps they change colors.   So fresh air coming out of them is less.

     In monsoon season the polluting particles and gases get dissolved in rain drops or, they come down on the Earth along with rain.  So the pollution in air gets washed away.  Also there is more fresh air from plants and trees after air, as the dust is washed away from trees and plants.  In rainy season there are more plants growing too.


2.   Children contract respiratory diseases more easily than adults.   This is because they have less resistance to diseases still.  Children from low ecosocial status are exposed to smoke or hot burning gases at home, while parents cook at home.  Perhaps the sanitation levels are not good enough.   The dust, dirt, chemical gas polluted air, hot gases from the vehicular traffic are present in the areas where such children live in, walk to the school or play.  Perhaps many of them stay in industrial areas where there is industrial pollution is present and smoke is emitted from furnaces.

    Perhaps these respiratory diseases are contagious and spread from their adults to the children.  Also they could spread from one child to another easily.    
  
    Children from upper social status  perhaps have fresh air available to them.  They may live in houses with parks, trees around them, they may have AC facilities which clean air.  They are protected from road pollution  when they travel in cars.

Answer 2

Answer:

I hope it helps you, buddy