Hong Kong (China) vs Italy: Long run air pollution

Hong Kong (China)
677,510
in 2022
Italy
748,652
in 2022
Hong Kong (China) rank
36th
Italy rank
34th

Long run air pollution over time

  • Hong Kong (China)
  • Italy
0500.0k1.0M1.5M2.0M2.5M175018862022

How they compare

Italy currently reports 748,652 against 677,510 in Hong Kong (China), a difference of 71,142.

That makes Italy's figure about 1.1 times Hong Kong (China)'s.

The two have swapped places 4 times across 273 shared years of data; in 1750 it was Italy ahead.

Hong Kong (China) ranks 36th and Italy ranks 34th of 216 countries.

Across the 28 decades both report, Hong Kong (China) averaged higher in 1 and Italy in 27.

Head to head by decade

Decade Hong Kong (China) Italy Difference Ahead
1750s 0.6594 5,169 5,168 Italy
1760s 0.6869 5,314 5,314 Italy
1770s 0.7155 5,464 5,463 Italy
1780s 0.7453 5,618 5,617 Italy
1790s 0.7764 5,775 5,775 Italy
1800s 0.8105 5,943 5,942 Italy
1810s 0.8484 6,123 6,123 Italy
1820s 0.9502 6,398 6,397 Italy
1830s 1.15 6,794 6,793 Italy
1840s 1.36 7,215 7,213 Italy
1850s 2.39 7,631 7,629 Italy
1860s 4.62 10,727 10,722 Italy
1870s 6.37 16,776 16,769 Italy
1880s 8.58 26,155 26,147 Italy
1890s 11.62 33,517 33,505 Italy
1900s 20.36 48,566 48,545 Italy
1910s 37.11 65,712 65,675 Italy
1920s 40.43 85,900 85,859 Italy
1930s 35.9 112,981 112,945 Italy
1940s 45.15 87,804 87,759 Italy
1950s 14,217 260,030 245,813 Italy
1960s 32,863 1.36 million 1.33 million Italy
1970s 141,957 2.06 million 1.92 million Italy
1980s 228,268 2.13 million 1.90 million Italy
1990s 459,104 2.14 million 1.68 million Italy
2000s 795,489 1.51 million 711,925 Italy
2010s 975,839 949,472 26,368 Hong Kong (China)
2020s 691,976 731,603 39,627 Italy

Averages of every year both report within each decade.

Frequently asked questions

Which has higher long run air pollution, Hong Kong (China) or Italy?
Italy, at 748,652 against 677,510 in Hong Kong (China) as of 2022.
What is the difference in long run air pollution between Hong Kong (China) and Italy?
71,142, with Italy ahead.
How many years of comparable data are there for Hong Kong (China) and Italy?
273 years are reported by both, from 1750 to 2022.
How do Hong Kong (China) and Italy rank globally for long run air pollution?
Hong Kong (China) ranks 36th and Italy ranks 34th of 216 countries.
Where does this data come from?
Our World in Data, published as Long run air pollution. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong (China) vs Italy: Long run air pollution. Statizoid, drawing on Our World in Data. Retrieved 20 August 2026, from https://environment.statizoid.com/compare/long-run-air-pollution/hong-kong-sar-china/italy/

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About this data

Indicator
Long run air pollution
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
220 places, 60,060 data points, 1750–2022
Last refreshed