Aerial view of the University of Dhaka science faculty buildings

Department of Chemistry · University of Dhaka

Atmospheric and Environmental Chemistry Research Laboratory

We study environmental pollution in Bangladesh.
Particulate matter (PM), black and brown carbon, trace gases,
heavy metals, and organic pollutants.
Our purpose is to study, inform, and educate people about
a better Atmosphere, a better Environment, and
a better Tomorrow!

131

peer-reviewed publications since 2003

44

student theses supervised: 23 MSc, 21 BSc

35

instruments in the laboratory and the field

22

externally funded research projects

From the laboratory

News and events

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Live

Air quality in Dhaka today

Dhaka US Air Quality Index

129 Unhealthy for sensitive groups

Children, older people and anyone with heart or lung disease should cut back on long or hard exertion outside.

PM2.5 µg/m³
28.0
Unhealthy for sensitive groups
PM10 µg/m³
31.9
Good
NO2 µg/m³
0.6
Good
O3 µg/m³
158.0
Good
Haze AOD
0.51
Hazy
  1. Good: Clean air. A good day to be outside. (appears in the table today)
  2. Moderate: Fine for most people. The unusually sensitive may want to take it easier outdoors.
  3. Unhealthy for sensitive groups: Children, older people and anyone with heart or lung disease should cut back on long or hard exertion outside. (appears in the table today)
  4. Unhealthy: Everyone may start to feel it. Sensitive groups should keep time outdoors short.
  5. Very unhealthy: A health alert. Everyone is more likely to be affected; stay in where you can.
  6. Hazardous: Emergency conditions. Everyone should avoid being outside.

Levels in bold appear in today’s readings. Each pollutant is graded on the US EPA scale using its recent average, so a sudden spike can look worse than its colour. Haze has no health scale, so it is described in words.

Data: Copernicus Atmosphere Monitoring Service, via Open-Meteo. Model estimates for 14 November, 14:00 Bangladesh time.

What we work on

The four main strands of our research.

A rooftop air monitoring site in Dhaka, with sampling instruments behind a railing

Air quality and particulate matter

Long-running PM2.5 and PM10 measurement across urban and rural Bangladesh, including filter sampling for a global surface particulate matter network and calibration of low-cost sensor networks.

A brick kiln chimney pouring black smoke into a hazy sky, with more kiln chimneys in the distance

Emission sources

Stack sampling at brick kilns and stationary sources, and the emissions from open burning of municipal solid waste and biomass, measured at the source rather than inferred from the ambient air.

Sampling at a tannery: tanning liquor poured from a jug into a sample bottle

Exposure and health risk

Heavy metals, polycyclic aromatic hydrocarbons and bioaerosols in indoor and personal environments (kitchens, libraries, hospitals and workplaces), and what exposure to them means for health.

A researcher at a laboratory bench with sample jars and glassware set out in front of her

Materials for pollutant removal

Synthesis and characterisation of layered double hydroxides and composite adsorbents, and their application to removing chromium(VI), nitrogen dioxide and other pollutants from water and air.

The Bangladesh Climate Observatory at Bhola: a white monitoring station and sampling tower standing in a paddy field under a blue sky

Observatory

Bangladesh Climate Observatory, Bhola

A rural background station on Bhola island, far from the city. Air coming in from the Bay of Bengal is measured here before it reaches Dhaka, giving a clean baseline to compare the city against.

Latest publications

The laboratory

AECRL is part of the Department of Chemistry at the University of Dhaka. The laboratory is led by Professor Dr. Abdus Salam, Pro-Vice-Chancellor (Academic) of the University of Dhaka.

The laboratory also trains chemists: 44 MSc and BSc theses have been completed here.