Make a tabular form of carbon dioxide levels in air for any 10 major cities of india before and after lockdown .
Answers
Answer:
Step-by-step explanation:
Nitrogen dioxide in urban air originates from combustion reactions at high temperatures. It’s mainly produced from coal in power plants and from vehicles.
High concentrations of this gas can affect the respiratory system and aggravate certain medical conditions, such as asthma. At extreme levels, this gas helps form acid rain
Declining nitrogen dioxide concentrations across Europe in the northern hemisphere are normally expected around this time – between the end of winter and beginning of spring – due to increased air motion.
But the observed decreases in many metropolises across Europe, India and China since partial and full lock downs began seem to be unprecedented.
Preliminary results of the satellite data analysis are a mixed bag. Some urban centres such as Brisbane and Sydney are indeed showing an expected decrease in nitrogen dioxide concentrations that correlates with the containment measures to fight COVID-19.
On average, pollution in both cities fell by 30% after the containment measures.
Like a heat map, the red in the images shows a higher concentration of nitrogen dioxide, while the green and yellow show less.