The charts illustrate the number of people who were affected by four types of noise pollution during the day and night in cities and rural areas in 2007.
Overall, more people were affected by noise pollution in cities than in rural areas. Also, noise levels were generally higher during the day than at night.
In cities, traffic noise affected the largest number of people in both day and night. Construction noise was also high during the day but became much lower at night. Noise from trains and airplanes affected fewer people compared to traffic, but they still had some impact, especially in urban areas.
In rural areas, the number of people affected by noise was much lower. Traffic noise was still the main source, but it affected fewer people than in cities. Other types of noise, such as construction, trains, and airplanes, had very small effects, especially at night.
In conclusion, noise pollution was a bigger problem in cities than in rural areas, and traffic was the main cause in both places.