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Air quality comparison · Malaysia, 28 km apart

Bandar Tasik Puteri vs Klang Air quality index (AQI) today

Bandar Tasik Puteri has cleaner air than Klang right now: AQI 66 (Moderate) against 86 (Moderate).

Both sit in the same EPA band, so the health advice is the same for each today. Over the past 6 days, on modeled daily averages, both averaged AQI 88. Bandar Tasik Puteri has lost more forest since 2001. Bandar Tasik Puteri has more tree cover.

Bandar Tasik Puteri

Malaysia

AQI 66

Moderate

Cleaner right now

PM2.5
16.9 µg/m³1.1× WHO guideline
Main pollutant
PM2.5
Source
Ground station
Reading
Nov 11, 23:00 local
Klang

Malaysia

AQI 86

Moderate

PM2.5
27.8 µg/m³1.9× WHO guideline
Main pollutant
PM2.5
Source
Ground station
Reading
Nov 11, 23:00 local

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

Bandar Tasik Puteri66Klang86

Head to head

Bandar Tasik Puteri vs Klang at a glance

Bandar Tasik Puteri is ahead on 4 of 6 measures, and Klang on 1. The better figure in each row is marked.

Bandar Tasik Puteri and Klang compared on air quality, forest loss and tree cover
Bandar Tasik PuteriKlang
Air quality nowUS AQI. Lower is better.66 (better)86
PM2.5Fine particles, µg/m³.16.9 (better)27.8
Past week's averageUS AQI, 6 days.8888
Forest lost since 2001Within 10 km of the center.13,300 ha5,140 ha (better)
Tree coverWithin 2 km of the center.54.2% (better)23.3%
Trees still neededTo reach a healthy canopy.0 (better)20.6K

Air quality today

What is the air like in Bandar Tasik Puteri and Klang right now?

Bandar Tasik Puteri has cleaner air than Klang right now: AQI 66 (Moderate) against 86 (Moderate). PM2.5 is setting the index in both.

Bandar Tasik Puteri's PM2.5 is about 1.1× the WHO's 24-hour guideline of 15 µg/m³. Klang's PM2.5 is about 1.9× the WHO's 24-hour guideline of 15 µg/m³.

Both readings come from nearby ground stations.

Bandar Tasik PuteriKlang

16.9PM2.5, µg/m³27.8
21.6PM10, µg/m³35.6

Concentrations at the same moment as the index above, for the pollutants both places report. Lower is better. The dark marks on the PM2.5 and PM10 rows show the WHO's 24-hour guidelines (15 and 45 µg/m³).

Bandar Tasik Puteri: Ground station · Shah Alam, Selangor, Malaysia, 22.1 km away · median of 4 stations. Data: World Air Quality Index Project, Malaysia Department of Environment (DOE); Air Polluant Index Management System.

Klang: Ground station · Pelabuhan Kelang, Selangor, Malaysia, 4.1 km away. Data: World Air Quality Index Project, Malaysia Department of Environment (DOE); Air Polluant Index Management System.

The past week

Which had cleaner air over the past 6 days?

Over the past 6 days, on modeled daily averages, both averaged AQI 88. The two are close enough that the air model behind these daily figures barely separates them, so their lines nearly overlap.

Cleaner days
Bandar Tasik Puteri0Klang1
Average AQI
Bandar Tasik Puteri88Klang88
Worst day, AQI
Bandar Tasik Puteri94Klang92
Bandar Tasik PuteriKlang
50100Nov 5Nov 6Nov 7Nov 8Nov 9Nov 10
The daily numbers (6 days)
Daily air quality index for Bandar Tasik Puteri and Klang
DayBandar Tasik PuteriKlang
Nov 59292
Nov 69090
Nov 78383
Nov 88787
Nov 98383
Nov 109491

Daily averages from the CAMS atmospheric model for both places, so the week compares like with like. They can differ from today's reading at the top of the page wherever that comes from a ground station.

What it means today

Is it safe to go outside in Bandar Tasik Puteri and Klang today?

Unusually sensitive people should consider limiting long outdoor exertion. Both are in the same EPA band today (Moderate), so the advice is the same.

Exercise outdoors

Fine for most people; unusually sensitive people should take long or hard exercise easier.

Windows

Fine to open; close them if you are sensitive to pollution.

Masks

Not needed for most people.

Air purifier

Worth running if you are sensitive.

Against everywhere else

How do Bandar Tasik Puteri and Klang compare with the rest of the world?

Right now Bandar Tasik Puteri's air is cleaner than 41% of the 5,420 places Airleaf tracks, and Klang's is cleaner than 28%. Within Malaysia, that is 33% and 5% of its 56 measured places.

Cleaner air than…

Bandar Tasik Puteri
Beats 41%
Klang
Beats 28%

More tree cover than…

Bandar Tasik Puteri
Beats 94%
Klang
Beats 54%

Includes model estimates as well as station readings, so it can differ from our most polluted and cleanest air rankings, which use station readings only.

Deforestation · 2001–2025

Which has lost more forest, Bandar Tasik Puteri or Klang?

Bandar Tasik Puteri has lost more: about 13,300 ha of forest within 10 km of its center from 2001 to 2025, against 5,140 ha around Klang. 13,200 ha of that was cleared for good, for farms, mines or towns.

Measured within 10 km of each center, from the yearly satellite maps of forest loss: a wider circle than the one for tree cover, because forest is usually lost at a city's edges.

Bandar Tasik Puteri
20012025

Worst year: 2004, with 1,190 ha lost.

Klang
20012025

Worst year: 2004, with 550 ha lost.

Forest loss around Bandar Tasik Puteri and Klang, 2001 to 2025
Bandar Tasik PuteriKlang
Forest lost since 2001Cleared, burned or logged.13,300 ha5,140 ha (better)
Share of its forestOf what it had in 2000.62%47% (better)
Cleared for goodTurned into farms, mines or towns.13,200 ha5,130 ha (better)
Recent trend2021–2025 against the five years before.Slowing downSlowing down
Main known causeFarms, pasture and plantations (48%)Towns and roads (84%)

Satellite timelapses

Watch both change, year by year

A clear satellite photo a year of the land around each city. Press play, turn on the forest cleared since the first year, or drag the before and after.

Bandar Tasik Puteri

Satellite image of the area around Bandar Tasik Puteri, March 2017

2017: satellite photo from March 2017 of a 5 × 5 km area about 6 km west of the city center.

Klang

Satellite image of the area around Klang, February 2017

2017: satellite photo from February 2017 of a 5 × 5 km area about 7 km north of the city center.

Trees

Which has more trees, Bandar Tasik Puteri or Klang?

Bandar Tasik Puteri has more tree cover: 54.2% of the land within 2 km of its center against 23.3% around Klang, or about 170,274 trees against 71,662.

Bandar Tasik Puteri54.2% of a 30% target
Klang23.3% of a 30% target

The dark mark is each place's canopy target: 30% of the land, raised where air quality is poor.

Tree figures for Bandar Tasik Puteri and Klang
Bandar Tasik PuteriKlang
Trees standingEstimated from the canopy area.170K (better)71.7K
Trees still neededTo reach the target. Fewer is better.0 (better)20.6K
CO₂ absorbed each yearBy the trees already standing.3.7M kg (better)1.6M kg

Tree cover on the satellite image

The same 2 km radius around each center, with the tree cover the satellite found marked on it.

Bandar Tasik Puteri54.2% tree cover · Sentinel-2 L2A (ESA Copernicus) via Earth Search, Sep 4, 2026
Klang23.3% tree cover · Sentinel-2 L2A (ESA Copernicus) via Earth Search, Aug 15, 2026

Reading these numbers

How this comparison is made

Air quality index

The US EPA index, computed from current pollutant concentrations: ground stations where a place has them nearby, and the CAMS atmospheric model everywhere else. It moves hour to hour, so it is a snapshot rather than a verdict on either place. The guideline marks are from the WHO's 2021 air quality guidelines.

Trees and forest

Tree cover is the share of ground under canopy within 2 km of each center, read from Sentinel-2 satellite imagery at 10 m detail. It measures that circle, not the whole municipality, which is what makes the two comparable. Forest loss comes from the University of Maryland's Global Forest Change maps.

More on the method on the About Airleaf page.

Frequently asked

Bandar Tasik Puteri vs Klang: your questions answered

Is Bandar Tasik Puteri cleaner than Klang?

On air quality, yes, right now: Bandar Tasik Puteri reads AQI 66 against 86, a gap of 20 points on the US EPA index. This is a live reading rather than an annual average, so it can reverse within a day. Over the past 6 days, on modeled daily averages, both averaged AQI 88.

Is it safe to exercise outdoors in Bandar Tasik Puteri and Klang today?

The advice is the same for both today. Unusually sensitive people should consider limiting long outdoor exertion. Bandar Tasik Puteri reads AQI 66 and Klang reads AQI 86.

Which has lost more forest, Bandar Tasik Puteri or Klang?

Bandar Tasik Puteri has lost more: about 13,300 ha of forest within 10 km of its center from 2001 to 2025, against 5,140 ha around Klang. 13,200 ha of that was cleared for good, for farms, mines or towns.

Which has more trees, Bandar Tasik Puteri or Klang?

Bandar Tasik Puteri has more tree cover: 54.2% of the land within 2 km of its center against 23.3% around Klang, or about 170,274 trees against 71,662. Both figures describe the same-sized circle of ground around each center, not the whole municipality.

How many more trees do Bandar Tasik Puteri and Klang need?

Bandar Tasik Puteri needs about 0 more to reach its canopy target of 30%, and Klang about 20,607 to reach 30%. The target starts at 30% of the land and rises where air quality is poor.

Why can two places 28 km apart read differently?

Air changes over short distances with traffic, industry, wind and hills, and each reading comes from the nearest ground stations or, where there are none, from a regional model. A gap of a few points between neighbors is within normal variation, while a gap that crosses an EPA band is worth noticing.

Are Bandar Tasik Puteri and Klang measured the same way?

The method is the same: the US EPA index for air, and Sentinel-2 satellite imagery at 10 m detail over an identical radius for trees. Both readings come from nearby ground stations. Nothing is adjusted for population, city limits or climate.

How often does the Bandar Tasik Puteri vs Klang comparison update?

The air readings refresh about once an hour, and each reading's local time is shown at the top of the page. Tree cover comes from the latest clear satellite image of each area (Sep 4, 2026 and Aug 15, 2026), and the forest figures are published yearly.

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