The above bar chart displays how 3 common sectors (electricity generation, transport and industry) contributed to the air pollution level in 4 countries (china, America, japan and Australia). The units are measured as parts per million.
Overall, we can observe that china accounted the highest amount of air pollution levels in all three sectors compared to the other countries. In American and japan, we can notice that a specific sector contributed to highest air pollution level and on the other hand, the significantly lowest air pollution level was observed in the country of Australia.
Let’s analyze the countries air pollution level sector wise. Transport sector accounted to contribute second most sector to cause air pollution in china by 70 million, japan by 30 million and around 20 million in Australia respectively. In America, it was the sector that caused the highest amount of air pollution which accounted around 60 million.
On the other hand, the industry sector was responsible for higher pollution level in china by 80 million and japan with just over 40 million. Followed by America, which accounted a little lower than by 30 million and the least air pollution level through industries was in Australia which is around 18 million.
Electricity generation sector caused least amount of air pollution levels in china around 48 million and America by exactly 30 million. Australia was observed to affect the highest by this sector by accounting a little less than 20 million and japan being the least affected by this sector with just over 5 million. 
The above bar chart displays how 3 common  
sectors
 (electricity generation, transport and industry) contributed to the  
air
  pollution
  level
 in 4  
countries
 ( 
china
, America,  
japan
 and Australia). The units  
are measured
 as parts per million. 
Overall
, we can observe that china  
accounted
 the highest amount of  
air
  pollution
  levels
 in all three  
sectors
 compared to the other  
countries
. In American and  
japan
, we can notice that a specific  
sector
 contributed to  
highest
  air
  pollution
  level
 and  
on the other hand
, the  
significantly
  lowest
  air
  pollution
  level
  was observed
 in the  
country
 of Australia. 
Let
’s analyze the  
countries
  air
  pollution
  level
  sector
 wise. Transport  
sector
  accounted
 to contribute second most  
sector
 to cause  
air
  pollution
 in  
china
 by 70  
million
,  
japan
 by 30  
million
 and  
around
 20  
million
 in Australia  
respectively
. In America, it was the  
sector
 that caused the highest amount of  
air
  pollution
 which  
accounted
  around
 60 million. 
On the other hand
, the industry  
sector
 was responsible for higher  
pollution
  level
 in  
china
 by 80  
million
 and  
japan
 with  
just
 over 40  
million
. Followed by America, which  
accounted
 a  
little
 lower than by 30  
million
 and the least  
air
  pollution
  level
 through industries was in Australia which is  
around
 18 million.
Electricity generation  
sector
 caused  
least
 amount of  
air
  pollution
  levels
 in  
china
  around
 48  
million
 and America by exactly 30  
million
. Australia  
was observed
 to affect the highest by this  
sector
 by accounting a  
little
 less than 20  
million
 and  
japan
 being the least  
affected
 by this  
sector
 with  
just
 over 5  
million
.