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Airleaf

Dārjiling vs Jalpāiguri

Tree cover and air quality for both, measured the same way: Sentinel-2 imagery at 10 m detail over a 2 km radius from each city centre, and the live US EPA air quality index. Same radius and same index, so the two numbers compare directly.

Dārjiling has more tree cover — 88.9% against 70.1%.

Dārjiling has cleaner air right now — AQI 49 against 111.

Tree cover gap
18.8 points
Dārjiling is ahead.
Air quality gap
62 AQI
Dārjiling is cleaner.
Trees between them
97.4K
Dārjiling has more standing.

Tree cover

Share of the 2 km radius under canopy.

88.9%

70.1%

Air quality index

US EPA index, live, with its band. Lower is better.

49 · Good

111 · Unhealthy for sensitive groups

Trees standing

Estimated from the measured canopy area.

279K

182K

Trees still needed

To reach the same canopy target. Fewer is better.

0

0

CO₂ absorbed each year

By the trees already standing.

6.1M kg

4.0M kg

Air quality in detail

What each city is breathing

Concentrations in µg/m³, measured at the same moment as the index above. Lower is better in every row. Both are modelled, with no ground station close enough to either.

PM2.5

Fine particles, the pollutant that usually sets the index.

11.7 µg/m³

39.5 µg/m³

PM10

Coarser particles — dust, pollen, road grit.

12.3 µg/m³

41.7 µg/m³

Nitrogen dioxide

Mostly traffic and combustion.

5.5 µg/m³

4.7 µg/m³

Ozone

Forms in sunlight; peaks on hot, still afternoons.

119 µg/m³

122 µg/m³

The last week, day by day

A single reading can catch a city on a bad afternoon. The week says whether it was the weather or the place.

DārjilingJalpāiguri· daily US EPA index, last 7 days
07515022 Sept25 Sept28 Sept
Daily air quality index for Dārjiling and Jalpāiguri
DayDārjilingJalpāiguri
22 Sept4791
23 Sept5063
24 Sept5261
25 Sept5675
26 Sept6886
27 Sept76100
28 Sept63149

Reading these numbers

What is actually being measured

Tree cover

The share of ground under canopy inside a 2 km radius of each city centre, read from Sentinel-2 satellite imagery at 10 m detail. It is a measurement of that circle, not of the whole municipality — which is exactly what makes the two comparable, since city boundaries are drawn to wildly different rules around the world. Dārjiling leads here at 88.9%.

Air quality index

The live US EPA index, computed from current pollutant concentrations — ground stations where a city has them nearby, and a model everywhere else. It moves hour to hour, so this is a snapshot rather than a verdict on either place: Dārjiling reads 49 (good) and Jalpāiguri reads 111 (unhealthy for sensitive groups) right now.

Frequently asked

Dārjiling and Jalpāiguri, answered

Which has more trees, Dārjiling or Jalpāiguri?

Dārjiling, with roughly 279,288 trees inside its 2 km radius against 181,906. Tree cover tells a slightly different story from raw count: Dārjiling has the denser canopy at 88.9%.

Which has better air quality, Dārjiling or Jalpāiguri?

Dārjiling right now, at AQI 49 against 111 — a gap of 62 points. This is a live reading rather than an annual average, so it can reverse within a day.

How many more trees does each city need?

Dārjiling needs about 0 more to reach its canopy target, and Jalpāiguri about 0. The target is the same share of ground for both, so the figures are directly comparable.

Are these two measured the same way?

Yes — that is the point of the page. Identical radius, identical satellite source at 10 m detail, and the same US EPA index for air. Nothing here is adjusted for population, city limits or climate, so the numbers describe the same-sized circle of ground in each place.

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