Begusarai vs Lahān
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.
Lahān has more tree cover — 78.6% against 51.0%.
Lahān has cleaner air right now — AQI 80 against 110.
- Tree cover gap
- 27.6 points
- Lahān is ahead.
- Air quality gap
- 30 AQI
- Lahān is cleaner.
- Trees between them
- 86.9K
- Lahān has more standing.
Tree cover
Share of the 2 km radius under canopy.
51.0%
78.6%
Air quality index
US EPA index, live, with its band. Lower is better.
110 · Unhealthy for sensitive groups
80 · Moderate
Trees standing
Estimated from the measured canopy area.
160K
247K
Trees still needed
To reach the same canopy target. Fewer is better.
0
0
CO₂ absorbed each year
By the trees already standing.
3.5M kg
5.4M 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.
39.2 µg/m³
26.1 µg/m³
PM10
Coarser particles — dust, pollen, road grit.
47.4 µg/m³
29.4 µg/m³
Nitrogen dioxide
Mostly traffic and combustion.
2.1 µg/m³
1.2 µg/m³
Ozone
Forms in sunlight; peaks on hot, still afternoons.
165 µg/m³
138 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.
| Day | Begusarai | Lahān |
|---|---|---|
| 22 Sept | 96 | 96 |
| 23 Sept | 45 | 59 |
| 24 Sept | 38 | 53 |
| 25 Sept | 38 | 44 |
| 26 Sept | 46 | 49 |
| 27 Sept | 80 | 80 |
| 28 Sept | 145 | 118 |
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. Lahān leads here at 78.6%.
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: Begusarai reads 110 (unhealthy for sensitive groups) and Lahān reads 80 (moderate) right now.
Frequently asked
Begusarai and Lahān, answered
Which has more trees, Begusarai or Lahān?
Lahān, with roughly 246,929 trees inside its 2 km radius against 160,061. Tree cover tells a slightly different story from raw count: Lahān has the denser canopy at 78.6%.
Which has better air quality, Begusarai or Lahān?
Lahān right now, at AQI 80 against 110 — a gap of 30 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?
Begusarai needs about 0 more to reach its canopy target, and Lahān 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.
Keep going
Other comparisons nearby
- Begusarai vs Munger44% tree cover · AQI 120Compare
- Begusarai vs Bihār Sharīf24% tree cover · AQI 100Compare
- Begusarai vs Saharsa46% tree cover · AQI 120Compare
- Begusarai vs Darbhanga28% tree cover · AQI 122Compare
- Begusarai vs Janakpur53% tree cover · AQI 77Compare
- Begusarai vs Dharān65% tree cover · AQI 82Compare
Build your own
Compare Begusarai with somewhere else
This place
Begusarai
Want a different pair? Browse comparisons or measure any address.