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Airleaf

Country comparison · 251 cities measured

Italy vs Japan Air quality index (AQI) and deforestation

Italy has cleaner air than Japan right now: its cities average AQI 46 against 47.

At ground stations alone, which measure rather than estimate, the averages are Italy 39 (17 cities) and Japan 48 (193 cities). Japan has lost more forest since 2001. Italy has more tree cover in its cities.

Italy

Average of 44 cities

AQI 46

Good

Cleaner on average

At ground stations
AQI 39
Tree cover
23.6%
Forest lost since 2001
547,000 ha
Japan

Average of 207 cities

AQI 47

Good

At ground stations
AQI 48
Tree cover
16.4%
Forest lost since 2001
1.02 million ha

Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.

Head to head

Italy vs Japan at a glance

Italy is ahead on 4 of 6 measures, and Japan on 2. The better figure in each row is marked.

Italy and Japan compared on air quality, forest loss and tree cover
ItalyJapan
Average air qualityUS AQI, all measured cities.46 (better)47
At ground stationsCities with a current station reading.39 (better)48
Cities over AQI 100Not fine for sensitive groups.2%0% (better)
Forest lost since 2001The whole country.547,000 ha (better)1.02 million ha
Share of its forest lostOf what it had in 2000.5.9%3.9% (better)
Average tree coverAcross its measured cities.23.6% (better)16.4%

Air quality today

Is Italy cleaner than Japan?

On air quality, yes, right now. Italy has cleaner air than Japan right now: its cities average AQI 46 against 47.

At ground stations alone, which measure rather than estimate, the averages are Italy 39 (17 cities) and Japan 48 (193 cities).

2% of the measured cities in Italy are over AQI 100 today, the point where the air stops being fine for sensitive groups, against 0% in Japan.

How each country's cities split across the air quality bands

Italy

  • Good23 (52%)
  • Moderate20 (45%)
  • Unhealthy for sensitive groups1 (2%)

Japan

  • Good102 (49%)
  • Moderate105 (51%)

Every measured city, including model estimates where no ground station is near.

Against everywhere else

How do Italy and Japan compare with other countries?

Right now the cities of Italy average cleaner air than 59% of the 171 countries Airleaf has enough cities to average, and those of Japan than 58%.

Cleaner air than…

Italy
Beats 59%
Japan
Beats 58%

More tree cover than…

Italy
Beats 49%
Japan
Beats 33%

Deforestation · 2001–2025

Which country has lost more forest, Italy or Japan?

Japan has lost more: about 1.02 million ha of forest from 2001 to 2025, against 547,000 ha in Italy, or 1.9 times as much. 108,000 ha of Japan's was cleared for good, for farms, mines or towns; the rest burned, was logged or can grow back.

The whole country, from the yearly satellite maps of forest loss: unlike the city averages above, this counts every forest, not just the land around cities.

Italy
20012025

Worst year: 2019, with 59,300 ha lost.

Japan
20012025

Worst year: 2016, with 54,800 ha lost.

Forest loss in Italy and Japan, 2001 to 2025
ItalyJapan
Forest lost since 2001Cleared, burned or logged.547,000 ha (better)1.02 million ha
Share of its forestOf what it had in 2000.5.9%3.9% (better)
Cleared for goodTurned into farms, mines or towns.50,500 ha (better)108,000 ha
Recent trend2021–2025 against the five years before.Holding steadyHolding steady
Main known causeLogging (74%)Logging (87%)

Trees

Which country has more tree cover, Italy or Japan?

Italy does: its measured cities average 23.6% tree cover against 16.4%, a gap of 7.1 percentage points.

Italy23.6%
Japan16.4%
Tree figures for Italy and Japan
ItalyJapan
Trees standingSummed across measured cities.3.1M10.2M (better)
Cities below their targetShort of the canopy target.80% (better)82%
Trees still neededTo reach those targets.1.1M (better)9.6M

Behind the averages

The cities behind Italy and Japan

An average says nothing about how far apart the best and worst places are. These are the measured cities at each end.

Italy

Greenest measured city
Perugia61.8% tree cover
Worst air right now
VicenzaAQI 119

Japan

Greenest measured city
Ōme74.7% tree cover
Worst air right now
SagaAQI 94

Reading these numbers

What a country average is, and is not

It is a mean of cities

Not a national statistic. Each figure is the average across the cities Airleaf has measured: 44 in Italy and 207 in Japan, each read over the same 2 km radius, on the US EPA index. Rural land and unmeasured towns are not in it.

Coverage shapes the number

A country measured mostly in its capital reads differently from one measured across dozens of towns. Japan rests on 207 cities against 44, so its average is the steadier of the two. Forest figures come from the University of Maryland's Global Forest Change maps.

Frequently asked

Italy vs Japan: your questions answered

Is Italy cleaner than Japan?

On air quality, yes, right now: Italy's cities average AQI 46 against 47 on the US EPA index. These are live readings averaged across cities, so the gap moves with the weather. At ground stations alone, which measure rather than estimate, the averages are Italy 39 (17 cities) and Japan 48 (193 cities).

Which country has lost more forest, Italy or Japan?

Japan has lost more: about 1.02 million ha of forest from 2001 to 2025, against 547,000 ha in Italy, or 1.9 times as much. 108,000 ha of Japan's was cleared for good, for farms, mines or towns; the rest burned, was logged or can grow back.

Which country has more tree cover, Italy or Japan?

Italy does: its measured cities average 23.6% tree cover against 16.4%, a gap of 7.1 percentage points.

How many cities are the Italy and Japan figures based on?

44 measured cities in Italy and 207 in Japan. Every one was read the same way, so the two averages are directly comparable, but a country with more measured cities has the more settled figure.

Why are there two air quality averages for each country?

The first covers every measured city, using a ground station where one is close and a model estimate everywhere else. The second counts only cities with a current station reading, which is measured rather than estimated but covers fewer places. Airleaf's world rankings use the station figures only.

Does this cover the whole of Italy and Japan?

The air and tree figures are not: they are the cities Airleaf has measured, each over the same 2 km radius, so treat them as a comparison of urban air and urban tree cover. The forest figures are: they count every forest in the country.

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