SmogRank / Episodes / India

North-western India, 17 April 2026

For 1 day, on 17 April 2026, 14 cities in India had PM2.5 at least twice their usual for the time of year. The worst reading was Gurugram, Haryana, India: 182.5 µg/m³ on 17 April, about 2.3× its usual 80.3.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached14in 1 country
Days117 April 2026
Worst day17 April14 cities counted
Furthest above usual5.6×Dhaulpur

Day by day

17 April 14 cities at twice their usual or more
DausaJaipurSawai MadhopurKarauliAlwarNarnaulSīkarBūndiBharatpurAjmerKotaJhunjhunūnDhāruheraBhiwadiVrindāvanMānesarPalwalCharkhi DādriAgraChūruDera MāndiAya NagarFaridabadNajafgarhBhilwaraBhiwāniGwaliorBahadurgarhJhālāwārDelhiBawānaFīrozābādLoniGhāziābādBulandshahrChittorgarhSonīpatBāghpatHisarNāgaurJīndMeerutJhānsiPanipatRājsamandFatehābādPāliSirsaPratāpgarhKarnālKaithalNandriBikanerMuzaffarnagarJodhpurUdaipurThānesarMorādābādHanumāngarhYamuna NagarRatlāmPatiālaBareillyAmbālaDewasDūngarpurSirohiJalorSaugorRajākheriMandideepSri GanganagarGobindgarhKhannaMohaliRishīkeshPanchkulaIndoreDehradunChandigarhKanpurDamohGandhinagarAhmedabadJabalpurBahawalpurBānswāraBhopalKhurjaBārānHāpurNoidaDādriNarelaGurugramBathindaGreater NoidaTonkRohtakDhaulpur
14 Apr151617181920
Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.

How it spread

GurugramGurugram, 14 April: 135.0 µg/m³Gurugram, 15 April: 207.0 µg/m³Gurugram, 16 April: no readingGurugram, 17 April: 182.5 µg/m³, 2.3× its usual 80.3Gurugram, 18 April: 114.1 µg/m³Gurugram, 19 April: 124.0 µg/m³Gurugram, 20 April: 107.3 µg/m³NarelaNarela, 14 April: 100.0 µg/m³Narela, 15 April: 112.0 µg/m³Narela, 16 April: no readingNarela, 17 April: 155.0 µg/m³, 2.1× its usual 74.4Narela, 18 April: 103.0 µg/m³Narela, 19 April: 151.0 µg/m³Narela, 20 April: 69.1 µg/m³RohtakRohtak, 14 April: 16.6 µg/m³Rohtak, 15 April: 67.9 µg/m³Rohtak, 16 April: no readingRohtak, 17 April: 154.0 µg/m³, 3.6× its usual 42.4Rohtak, 18 April: 66.7 µg/m³Rohtak, 19 April: 95.4 µg/m³Rohtak, 20 April: 97.3 µg/m³DhaulpurDhaulpur, 14 April: no readingDhaulpur, 15 April: no readingDhaulpur, 16 April: no readingDhaulpur, 17 April: 138.0 µg/m³, 5.6× its usual 24.5Dhaulpur, 18 April: no readingDhaulpur, 19 April: 20.0 µg/m³Dhaulpur, 20 April: 21.2 µg/m³DādriDādri, 14 April: 79.0 µg/m³Dādri, 15 April: 119.0 µg/m³Dādri, 16 April: no readingDādri, 17 April: 134.0 µg/m³, 2.1× its usual 63.9Dādri, 18 April: 85.7 µg/m³Dādri, 19 April: 130.0 µg/m³Dādri, 20 April: 56.5 µg/m³TonkTonk, 14 April: 48.2 µg/m³Tonk, 15 April: 43.3 µg/m³Tonk, 16 April: no readingTonk, 17 April: 110.0 µg/m³, 3.4× its usual 32.2Tonk, 18 April: 48.1 µg/m³Tonk, 19 April: 34.9 µg/m³Tonk, 20 April: 32.2 µg/m³NoidaNoida, 14 April: 62.1 µg/m³Noida, 15 April: 77.2 µg/m³Noida, 16 April: no readingNoida, 17 April: 104.7 µg/m³, 2.1× its usual 49.9Noida, 18 April: 74.1 µg/m³Noida, 19 April: 124.5 µg/m³Noida, 20 April: 50.7 µg/m³HāpurHāpur, 14 April: 74.5 µg/m³Hāpur, 15 April: 86.6 µg/m³Hāpur, 16 April: no readingHāpur, 17 April: 87.3 µg/m³, 2.1× its usual 41.2Hāpur, 18 April: 46.7 µg/m³Hāpur, 19 April: 118.0 µg/m³Hāpur, 20 April: 55.9 µg/m³Greater NoidaGreater Noida, 14 April: 51.5 µg/m³Greater Noida, 15 April: 58.6 µg/m³Greater Noida, 16 April: no readingGreater Noida, 17 April: 78.1 µg/m³, 2.5× its usual 31.1Greater Noida, 18 April: 44.9 µg/m³Greater Noida, 19 April: 73.1 µg/m³Greater Noida, 20 April: 36.5 µg/m³BānswāraBānswāra, 14 April: no readingBānswāra, 15 April: 33.0 µg/m³Bānswāra, 16 April: no readingBānswāra, 17 April: 77.8 µg/m³, 2.0× its usual 38.2Bānswāra, 18 April: 59.2 µg/m³Bānswāra, 19 April: 126.0 µg/m³Bānswāra, 20 April: 35.8 µg/m³BathindaBathinda, 14 April: 32.6 µg/m³Bathinda, 15 April: 31.0 µg/m³Bathinda, 16 April: no readingBathinda, 17 April: 70.0 µg/m³, 2.4× its usual 29.4Bathinda, 18 April: 35.9 µg/m³Bathinda, 19 April: 33.7 µg/m³Bathinda, 20 April: 34.0 µg/m³BārānBārān, 14 April: 44.0 µg/m³Bārān, 15 April: 31.8 µg/m³Bārān, 16 April: no readingBārān, 17 April: 61.1 µg/m³, 2.1× its usual 29.6Bārān, 18 April: 46.3 µg/m³Bārān, 19 April: 44.1 µg/m³Bārān, 20 April: 61.6 µg/m³KhurjaKhurja, 14 April: 63.8 µg/m³Khurja, 15 April: 58.5 µg/m³Khurja, 16 April: no readingKhurja, 17 April: 60.3 µg/m³, 2.1× its usual 28.9Khurja, 18 April: 54.6 µg/m³Khurja, 19 April: 69.8 µg/m³Khurja, 20 April: 52.1 µg/m³BhopalBhopal, 14 April: 47.7 µg/m³Bhopal, 15 April: 53.9 µg/m³Bhopal, 16 April: no readingBhopal, 17 April: 60.1 µg/m³, 2.1× its usual 28.5Bhopal, 18 April: 41.9 µg/m³Bhopal, 19 April: 45.5 µg/m³Bhopal, 20 April: 33.1 µg/m³14 Apr151617181920
Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
DhaulpurRajasthan, India1 138.017 April24.55.6×
RohtakHaryana, India1 154.017 April42.43.6×
TonkRajasthan, India1 110.017 April32.23.4×
Greater NoidaUttar Pradesh, India1 78.117 April31.12.5×
BathindaPunjab, India1 70.017 April29.42.4×
GurugramHaryana, India1 182.517 April80.32.3×
NarelaDelhi, India1 155.017 April74.42.1×
DādriUttar Pradesh, India1 134.017 April63.92.1×
NoidaUttar Pradesh, India1 104.717 April49.92.1×
HāpurUttar Pradesh, India1 87.317 April41.22.1×
BārānRajasthan, India1 61.117 April29.62.1×
KhurjaUttar Pradesh, India1 60.317 April28.92.1×
BhopalMadhya Pradesh, India1 60.117 April28.52.1×
BānswāraRajasthan, India1 77.817 April38.22.0×

Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.

Against other episodes in India

Number 19 of 55 episodes in India since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 55.

Use this page

SmogRank, North-western India, 17 April 2026: 14 cities with PM2.5 at twice their usual or more, 17 April 2026, smogrank.com/episodes/2026-04-17-north-western-india (accessed 4 October 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.

An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes. Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.