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Airleaf

Country comparison · 696 cities measured

China vs Spain Air quality index (AQI) and deforestation

Spain has cleaner air than China right now: its cities average AQI 20 against 115.

At ground stations alone, which measure rather than estimate, the averages are China 127 (424 cities) and Spain 32 (15 cities). China has lost more forest since 2001. China has more tree cover in its cities.

China

Average of 639 cities

AQI 115

Unhealthy for sensitive groups

At ground stations
AQI 127
Tree cover
22.9%
Forest lost since 2001
13.5 million ha
Spain

Average of 57 cities

AQI 20

Good

Cleaner on average

At ground stations
AQI 32
Tree cover
14.3%
Forest lost since 2001
1.79 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

China vs Spain at a glance

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

China and Spain compared on air quality, forest loss and tree cover
ChinaSpain
Average air qualityUS AQI, all measured cities.11520 (better)
At ground stationsCities with a current station reading.12732 (better)
Cities over AQI 100Not fine for sensitive groups.57%2% (better)
Forest lost since 2001The whole country.13.5 million ha1.79 million ha (better)
Share of its forest lostOf what it had in 2000.8.3% (better)17%
Average tree coverAcross its measured cities.22.9% (better)14.3%

Air quality today

Is Spain cleaner than China?

On air quality, yes, right now. Spain has cleaner air than China right now: its cities average AQI 20 against 115.

At ground stations alone, which measure rather than estimate, the averages are China 127 (424 cities) and Spain 32 (15 cities).

57% of the measured cities in China are over AQI 100 today, the point where the air stops being fine for sensitive groups, against 2% in Spain.

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

China

  • Good44 (7%)
  • Moderate231 (36%)
  • Unhealthy for sensitive groups156 (24%)
  • Unhealthy186 (29%)
  • Very unhealthy21 (3%)
  • Hazardous1 (0%)

Spain

  • Good56 (98%)
  • Unhealthy for sensitive groups1 (2%)

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

Against everywhere else

How do China and Spain compare with other countries?

Right now the cities of China average cleaner air than 4% of the 171 countries Airleaf has enough cities to average, and those of Spain than 96%.

Cleaner air than…

China
Beats 4%
Spain
Beats 96%

More tree cover than…

China
Beats 46%
Spain
Beats 28%

Deforestation · 2001–2025

Which country has lost more forest, China or Spain?

China has lost more: about 13.5 million ha of forest from 2001 to 2025, against 1.79 million ha in Spain, or 7.5 times as much. 2.24 million ha of China'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.

China
20012025

Worst year: 2008, with 739,000 ha lost.

Spain
20012025

Worst year: 2025, with 153,000 ha lost.

Forest loss in China and Spain, 2001 to 2025
ChinaSpain
Forest lost since 2001Cleared, burned or logged.13.5 million ha1.79 million ha (better)
Share of its forestOf what it had in 2000.8.3% (better)17%
Cleared for goodTurned into farms, mines or towns.2.24 million ha81,100 ha (better)
Recent trend2021–2025 against the five years before.Holding steadyHolding steady
Main known causeLogging (75%)Logging (65%)

Trees

Which country has more tree cover, China or Spain?

China does: its measured cities average 22.9% tree cover against 14.3%, a gap of 8.6 percentage points.

China22.9%
Spain14.3%
Tree figures for China and Spain
ChinaSpain
Trees standingSummed across measured cities.43.8M (better)2.4M
Cities below their targetShort of the canopy target.82% (better)91%
Trees still neededTo reach those targets.27.5M2.6M (better)

Behind the averages

The cities behind China and Spain

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

China

Greenest measured city
Fenghuang80.9% tree cover
Worst air right now
YishuiAQI 393

Spain

Greenest measured city
Girona44.1% tree cover
Worst air right now
TerrassaAQI 51

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: 639 in China and 57 in Spain, 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. China rests on 639 cities against 57, so its average is the steadier of the two. Forest figures come from the University of Maryland's Global Forest Change maps.

Frequently asked

China vs Spain: your questions answered

Is Spain cleaner than China?

On air quality, yes, right now: Spain's cities average AQI 20 against 115 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 China 127 (424 cities) and Spain 32 (15 cities).

Which country has lost more forest, China or Spain?

China has lost more: about 13.5 million ha of forest from 2001 to 2025, against 1.79 million ha in Spain, or 7.5 times as much. 2.24 million ha of China'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, China or Spain?

China does: its measured cities average 22.9% tree cover against 14.3%, a gap of 8.6 percentage points.

How many cities are the China and Spain figures based on?

639 measured cities in China and 57 in Spain. 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 China and Spain?

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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