The graph below shows different sources of air pollutants in Portugal from 2005 to 2020. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The line chart presents three sources of air pollutants in Portugal between 2005 and 2020. Overall, in Portugal, industry contributes significantly to air pollution, whereas household has the least influence. Although air pollutants from industry and household have decreased throughout the period, air pollutants from transportation have increased from 2005 to 2020. In 2005, air […]

The chart compares the changes in three primary sources of air pollutants in Portugal during 2005 to 2020. Overall, only emmissions from transportations saw an increase over the surveyed period, whereas household and industry became less significant. Additionally, industry remained the biggest factor to air pollution in Portugal throughout. Regarding transport, approximately 1 million tonnes […]