Smog Season in Punjab: Protecting Your Lungs
Open this article in the interactive app
Reduce exposure to harmful particles rather than relying on home remedies. Smog is a mixture of pollutants from sources such as traffic, industry, household fuel, dust and seasonal burning, altered by weather. Fine particulate matter (PM2.5) reaches deep into the lungs and is linked to respiratory and cardiovascular illness. Children, older adults, pregnant people, outdoor workers and those with asthma, COPD or heart disease may be especially vulnerable. The share from any one emission source depends on location, pollutant, season and the methods of the study; beware of single percentages presented without that context. [1]
What does it mean?
Reduce exposure to harmful particles rather than relying on home remedies.
Common causes
- What the numbers mean
WHO’s 2021 air-quality guideline for PM2.5 is 5 micrograms/m³ for the annual mean and 15 micrograms/m³ for the 24-hour mean (defined as the 99th-percentile guidance), not an individual “safe exposure” threshold. The US Air Quality Index describes 201–300 as Very Unhealthy and 301–500 as Hazardous. AQI is an index, not a PM2.5 concentration expressed in micrograms/m³; never substitute the two numbers. Check local monitoring data and the time of measurement. [1][2] - Steps that actually help
On heavily polluted days, reduce prolonged outdoor activity, especially strenuous exercise near busy roads. Close windows during severe episodes when outdoor air is worse, and improve indoor filtration if feasible with a properly maintained HEPA air cleaner or appropriate filtered ventilation. Keep indoor air cleaner by avoiding smoking, incense, burning waste and unnecessary frying smoke. People with diagnosed asthma or COPD should follow their prescribed action plan and keep prescribed rescue medicines accessible. [3] - Do masks protect against smog?
A well-fitting certified N95 or similar particulate respirator can reduce inhalation of fine particles when outdoor exposure is unavoidable. It must seal against the face; loose cloth or surgical masks offer much less reliable protection against fine particles. N95 respirators do not filter harmful gases, and a poor fit limits benefit. Children under two must not wear respirators. Exposure reduction and clean indoor air remain more important than a mask alone. [3]
When to worry
Seek urgent medical care
Severe breathlessness, blue lips, chest pain, fainting, new confusion or significant worsening of established lung disease requires urgent medical assessment; call emergency services if severe. Steam, herbal mixtures or antibiotics taken without a diagnosis do not protect against particulate pollution. [3]
What a doctor checks
WHO’s 2021 air-quality guideline for PM2.5 is 5 micrograms/m³ for the annual mean and 15 micrograms/m³ for the 24-hour mean (defined as the 99th-percentile guidance), not an individual “safe exposure” threshold. The US Air Quality Index describes 201–300 as Very Unhealthy and 301–500 as Hazardous. AQI is an index, not a PM2.5 concentration expressed in micrograms/m³; never substitute the two numbers. Check local monitoring data and the time of measurement. [1][2]
Prevention & practical tips
- On heavily polluted days, reduce prolonged outdoor activity.
- Keep windows closed during severe episodes; use HEPA filtration if possible.
- Avoid smoking, incense, and burning waste indoors.
- Asthma/COPD patients: follow your action plan, keep rescue medicines handy.
Questions to ask your doctor
- Is smog worse in the morning?
- Can smog cause a heart attack?
- Which mask is best for smog in Pakistan?
FAQs
A well-fitting N95 reduces fine particle inhalation. Cloth and surgical masks help much less.
201–300 is Very Unhealthy; 301–500 is Hazardous on the US AQI scale.
Reduce prolonged outdoor activity on heavily polluted days, especially strenuous exercise.
References
WHO: Global Air Quality Guidelines (2021)
Primary reference for this article.
- WHO: Global Air Quality Guidelines (2021)
- AirNow: US AQI categories
- US EPA: Reduce smoke exposure (2026)
Only articles marked Reviewed ✓ with a date have passed Dr. Umer's medical review.
How this article was reviewed
- Written by: Dr. Muhammad Umer Farooq, MBBS — October 2026
- Medical review: Completed by Dr. Muhammad Umer Farooq, MBBS — October 2026. All medical content was provided and verified by Dr. Umer.
- Found an error? Tell Dr. Umer by email