Punjab Air Quality Improves by Afternoon on 20 October 2026: Lahore 149, Kasur 168

Punjab's air was much cleaner by 1 pm on Tuesday, 20 October 2026. Lahore's 11-station average fell to 149 on the Punjab EPA dashboard, from 207 at 5 am. Kasur dropped from 342 to 168, Jhang from 312 to 162 and Pakpattan from 500 to 145. No city in the ranking was above 200.

That is a big swing in eight hours, and it matters for anyone planning a school run, a walk or outdoor work. We read the Environmental Protection Agency Punjab air quality dashboard at noon and again at 1 pm on 20 October, after the 5 am readings in our morning report on Punjab air quality on 20 October. AQI, the air quality index, turns pollution readings into one number from 0 to 500. Higher is worse.

Lahore fell to 149 by 1 pm, from 207 at 5 am

The dashboard put Lahore at 149 at 1 pm, in the moderate band, after 207, unhealthy, at 5 am. At noon it read 160. Lahore was still worse than at the same hour on Monday, when the dashboard showed 133.

So the honest summary is mixed. The afternoon was far better than the morning. But Tuesday afternoon was a little worse than Monday afternoon. Smog season has not eased, it simply moves through the day.

Kasur led the 1 pm ranking at 168

At 1 pm the dashboard ranked 32 places. Kasur was worst at 168, followed by Narowal at 167, Jhang at 162, Faisalabad at 158 and Hafizabad at 155. Ten places were in the "unhealthy for sensitive groups" band, from 151 to 200, and none was higher.

Twenty places sat in the moderate band, from 101 to 150, including Lahore, Okara, Pakpattan, Rawalpindi and Murree. Sheikhupura read 99, the satisfactory band. Chiniot showed 13, which is far below every neighbour. We would treat that as a likely station fault rather than clean air, because the dashboard also carried a "connectivity issue" notice that named no stations.

At 5 am the picture was the opposite: 23 of 31 cities were above 150, and three were above 300. That count is our arithmetic from the two rankings.

DHA Phase 6 was Lahore's worst station at 184

Inside Lahore, DHA Phase 6 read 184 at 1 pm, the highest of the 11 stations. Barki Road read 163 and Multan Road 160. Gulberg III was the cleanest at 118. Shahdara, the worst station at 5 am at 279, had fallen to 152.

PM2.5 is the fine dust, smaller than 2.5 thousandths of a millimetre, that reaches deep into the lungs. The dashboard shows it in micrograms per cubic metre. DHA Phase 6 also showed high ozone at 1 pm, 175.5, which is common on sunny afternoons. Egerton Road showed no PM2.5 reading and Wagha Border's PM10 sensor was marked under maintenance.

Warmer, drier air came with the cleaner afternoon

The dashboard's Lahore weather read 32 degrees, 57 per cent humidity and a 0.9 metre a second wind at 1 pm. At 5 am it read 23 degrees, 83 per cent humidity and 0.5 metres a second. The dashboard gives no reason for the drop in AQI.

The usual explanation is simple. Cold, still air at night traps smoke near the ground. When the sun warms the ground, the air mixes upward and the pollution spreads out. That is general weather science, not the EPA's statement. The PMD expects dry weather across Punjab through the week, so the same morning peak is likely to return, as the PMD weekly outlook shows.

Plan outdoor time for the afternoon, not the morning

On today's readings, the afternoon is the safer window for a walk, sport or outdoor work in Punjab. The early morning is the worst. The dashboard's health advisory still tells the general public to wear a face mask outdoors and avoid heavy or long outdoor activity.

1. Check the live reading for your city on the Punjab EPA dashboard before going out.
2. Move exercise and errands to the afternoon where you can.
3. Keep children, older people and heart or lung patients indoors in the early morning.
4. Use an N95 or KN95 mask outside if your city is above 150.
5. Call the EPA helpline 1373 to report smoke from burning or factories.

The mask advice in detail is in our page on wearing an N95 mask in smog. For people most at risk, see how to protect pregnant women and asthma patients.

Common questions

What was Lahore's AQI on the afternoon of 20 October 2026?

149 at 1 pm, in the moderate band, on the Punjab EPA dashboard. It was 160 at noon and 207 at 5 am.

Which Punjab city had the worst air at 1 pm on 20 October?

Kasur, at 168, followed by Narowal at 167 and Jhang at 162.

Why is smog worse in the morning?

Cold, still night air traps smoke near the ground. As the day warms, it mixes upward and readings fall. This is general weather science, not an EPA statement.

Was the air better than on 19 October?

Not in Lahore. The 1 pm reading of 149 compares with 133 at the same hour on 19 October.

Is Chiniot's AQI of 13 correct?

We doubt it. It is far below every nearby city, and the dashboard showed a connectivity notice. Treat it with care.

How we verified this

What we checked, where we read it, and what we could not confirm.

We read the Environmental Protection Agency Punjab air quality dashboard at its 12 noon and 1 pm updates on 20 October 2026. The 5 am figures are from our morning report on the same dashboard. Band counts and changes are our arithmetic. We could not find which stations the connectivity notice covered, and we do not know whether Chiniot's reading is a fault. Readings change every hour.