Data operations

Can we trust what the site is showing?

Current readings, station geography and historical coverage are audited separately. That matters because a source can have excellent station metadata but still lag as a real-time feed.

Open research data quality →Frozen research releases →Research operations →

LIVE · HYBRID

CPCB current snapshots + owned history archive

Current particulate snapshots come from CPCB's official Open Government Data feed on data.gov.in. When configured, Delhi Air Health stores those monitor snapshots itself every hour; OpenAQ remains a secondary history and station-geography source.

Campuses

Entries currently in the Delhi campus registry.

Current snapshots

30/30

Campuses with a current PM2.5 or PM10 value from the active provider.

Current gaps

Campuses without a safely matched current CPCB PM2.5/PM10 snapshot.

24h chart coverage

30/30

Campuses with at least 16 PM2.5 points from the stronger available history source. Archived CPCB snapshots remain descriptive and are not automatically treated as validated hourly AQI input.

Delhi monitor network + nearby NCR ring

The archive follows the monitoring network, not just the campuses

This map is rendered from Delhi Air Health's own latest archived CPCB-linked station rows, so it does not disappear when a secondary geography provider is unavailable. Delhi feeds are kept separate from nearby NCR feeds.

69 station feeds69 mapped

69 mapped feeds · 69 archived feeds

Delhi · 44 nearby NCR · 25

Delhi Air Health history archive

Collector healthy

Our CPCB snapshot archive is accumulating automatically

The cloud collector stores one row per physical monitor and CPCB source timestamp. Repeated runs at the same source timestamp are merged instead of being mistaken for new hourly observations.

Last capture: 50 min agoCron: active · 12 * * * *Last cron run: succeededRecent feeds: 66

Stored rows

2495

all captures

Delhi feeds

inside Delhi

NCR feeds

nearby ring

Physical sites

coordinate-deduped

Archive span

46 h

source observation time

Campus audit

What monitor is each campus actually using?

Indian official-source matches: 29/30

Campus	Selected monitor	Distance	Reference confidence	24h PM2.5 history	Current snapshot
UCMS Dilshad Garden	IHBAS, Dilshad Garden, Delhi - CPCB CPCB OGD · CPCB	0.7 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 62 µg/m³
MAMC Bahadur Shah Zafar Marg	ITO, Delhi - CPCB CPCB OGD · CPCB	0.8 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 60 µg/m³
AIIMS Ansari Nagar	Sirifort, Delhi - CPCB CPCB OGD · CPCB	1.6 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 83 µg/m³
VMMC Safdarjung	R K Puram, Delhi - DPCC CPCB OGD · DPCC	2.0 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 120 µg/m³
ABVIMS Connaught Place area	Talkatora Garden, Delhi - DPCC DPCC · DPCC	0.7 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 61 µg/m³
LHMC Connaught Place area	Mandir Marg, Delhi - DPCC DPCC · DPCC	1.1 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 38 µg/m³
Dr BSA Rohini	Rohini, Delhi - DPCC CPCB OGD · DPCC	2.1 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 128 µg/m³
Hindu University Enclave	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	3.1 km Straight-line distance	Moderate reference confidence Area-level reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
Hansraj Malka Ganj / North Campus	Chandni Chowk, Delhi - IITM CPCB OGD · IITM	3.0 km Straight-line distance	Moderate reference confidence Area-level reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
Miranda North Campus	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	2.8 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
St Stephen's University Enclave	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	3.4 km Straight-line distance	Moderate reference confidence Area-level reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
Ramjas North Campus	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	2.7 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
KMC North Campus	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	2.9 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
SRCC North Campus	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	2.4 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
SGTB Khalsa North Campus	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	2.7 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
Daulat Ram Maurice Nagar / North Campus	Ashok Vihar, Delhi - DPCC CPCB OGD · DPCC	2.5 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
IP College Civil Lines	Chandni Chowk, Delhi - IITM CPCB OGD · IITM	2.7 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 82 µg/m³
ARSD Dhaula Kuan	R K Puram, Delhi - DPCC CPCB OGD · DPCC	3.7 km Straight-line distance	Moderate reference confidence Area-level reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 120 µg/m³
Gargi Siri Fort / Green Park	Sirifort, Delhi - CPCB CPCB OGD · CPCB	0.5 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 83 µg/m³
LSR Lajpat Nagar	Nehru Nagar, Delhi - DPCC CPCB OGD · DPCC	1.6 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 93 µg/m³
Maitreyi Chanakyapuri	R K Puram, Delhi - DPCC CPCB OGD · DPCC	3.4 km Straight-line distance	Moderate reference confidence Area-level reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 120 µg/m³
PGDAV Nehru Nagar / Lajpat Nagar	Nehru Nagar, Delhi - DPCC CPCB OGD · DPCC	0.1 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 93 µg/m³
KNC Siri Fort	Sirifort, Delhi - CPCB CPCB OGD · CPCB	0.6 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 83 µg/m³
Venky Dhaula Kuan / Satya Niketan	R K Puram, Delhi - DPCC CPCB OGD · DPCC	3.4 km Straight-line distance	Moderate reference confidence Area-level reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 120 µg/m³
IIT Delhi Hauz Khas	IIT Delhi, Delhi - IITM IITM · IITM	0.2 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 61 µg/m³
JNU New Mehrauli Road	JNU, Delhi - DPCC DPCC · DPCC	0.6 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 63 µg/m³
Jamia Jamia Nagar	CRRI Mathura Road, Delhi - IITM CPCB OGD · IITM	1.6 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 76 µg/m³
DTU Shahbad Daulatpur	DTU, Delhi - CPCB CPCB OGD · CPCB	0.6 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 83 µg/m³
NSUT Dwarka	NSIT Dwarka, Delhi - CPCB CPCB OGD · CPCB	0.6 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 28 µg/m³
IIIT Delhi Okhla	CRRI Mathura Road, Delhi - IITM CPCB OGD · IITM	0.8 km Straight-line distance	High reference confidence Nearby reference	19/24 · owned archive snapshots	8 Sept 2026, 1:00 pm PM2.5 76 µg/m³

Campus

Selected monitor

Distance

Reference confidence

24h PM2.5 history

Current snapshot

UCMS

Dilshad Garden

IHBAS, Dilshad Garden, Delhi - CPCB

CPCB OGD · CPCB

0.7 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 62 µg/m³

MAMC

Bahadur Shah Zafar Marg

ITO, Delhi - CPCB

CPCB OGD · CPCB

0.8 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 60 µg/m³

AIIMS

Ansari Nagar

Sirifort, Delhi - CPCB

CPCB OGD · CPCB

1.6 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 83 µg/m³

VMMC

Safdarjung

R K Puram, Delhi - DPCC

CPCB OGD · DPCC

2.0 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 120 µg/m³

ABVIMS

Connaught Place area

Talkatora Garden, Delhi - DPCC

DPCC · DPCC

0.7 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 61 µg/m³

LHMC

Connaught Place area

Mandir Marg, Delhi - DPCC

DPCC · DPCC

1.1 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 38 µg/m³

Dr BSA

Rohini

Rohini, Delhi - DPCC

CPCB OGD · DPCC

2.1 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 128 µg/m³

Hindu

University Enclave

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

3.1 km

Straight-line distance

Moderate reference confidence

Area-level reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

Hansraj

Malka Ganj / North Campus

Chandni Chowk, Delhi - IITM

CPCB OGD · IITM

3.0 km

Straight-line distance

Moderate reference confidence

Area-level reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

Miranda

North Campus

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

2.8 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

St Stephen's

University Enclave

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

3.4 km

Straight-line distance

Moderate reference confidence

Area-level reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

Ramjas

North Campus

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

2.7 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

KMC

North Campus

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

2.9 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

SRCC

North Campus

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

2.4 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

SGTB Khalsa

North Campus

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

2.7 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

Daulat Ram

Maurice Nagar / North Campus

Ashok Vihar, Delhi - DPCC

CPCB OGD · DPCC

2.5 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

IP College

Civil Lines

Chandni Chowk, Delhi - IITM

CPCB OGD · IITM

2.7 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 82 µg/m³

ARSD

Dhaula Kuan

R K Puram, Delhi - DPCC

CPCB OGD · DPCC

3.7 km

Straight-line distance

Moderate reference confidence

Area-level reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 120 µg/m³

Gargi

Siri Fort / Green Park

Sirifort, Delhi - CPCB

CPCB OGD · CPCB

0.5 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 83 µg/m³

LSR

Lajpat Nagar

Nehru Nagar, Delhi - DPCC

CPCB OGD · DPCC

1.6 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 93 µg/m³

Maitreyi

Chanakyapuri

R K Puram, Delhi - DPCC

CPCB OGD · DPCC

3.4 km

Straight-line distance

Moderate reference confidence

Area-level reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 120 µg/m³

PGDAV

Nehru Nagar / Lajpat Nagar

Nehru Nagar, Delhi - DPCC

CPCB OGD · DPCC

0.1 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 93 µg/m³

KNC

Siri Fort

Sirifort, Delhi - CPCB

CPCB OGD · CPCB

0.6 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 83 µg/m³

Venky

Dhaula Kuan / Satya Niketan

R K Puram, Delhi - DPCC

CPCB OGD · DPCC

3.4 km

Straight-line distance

Moderate reference confidence

Area-level reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 120 µg/m³

IIT Delhi

Hauz Khas

IIT Delhi, Delhi - IITM

IITM · IITM

0.2 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 61 µg/m³

JNU

New Mehrauli Road

JNU, Delhi - DPCC

DPCC · DPCC

0.6 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 63 µg/m³

Jamia

Jamia Nagar

CRRI Mathura Road, Delhi - IITM

CPCB OGD · IITM

1.6 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 76 µg/m³

DTU

Shahbad Daulatpur

DTU, Delhi - CPCB

CPCB OGD · CPCB

0.6 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 83 µg/m³

NSUT

Dwarka

NSIT Dwarka, Delhi - CPCB

CPCB OGD · CPCB

0.6 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 28 µg/m³

IIIT Delhi

Okhla

CRRI Mathura Road, Delhi - IITM

CPCB OGD · IITM

0.8 km

Straight-line distance

High reference confidence

Nearby reference

19/24 · owned archive snapshots

8 Sept 2026, 1:00 pm

PM2.5 76 µg/m³

Monitor reuse

Which campuses share the same reference station?

Ashok Vihar, Delhi - DPCC

CPCB OGD · OpenAQ ID 8917

8 campuses

Hindu · 3.1 km Miranda · 2.8 km St Stephen's · 3.4 km Ramjas · 2.7 km KMC · 2.9 km SRCC · 2.4 km SGTB Khalsa · 2.7 km Daulat Ram · 2.5 km

R K Puram, Delhi - DPCC

CPCB OGD · OpenAQ ID 17

4 campuses

VMMC · 2.0 km ARSD · 3.7 km Maitreyi · 3.4 km Venky · 3.4 km

Sirifort, Delhi - CPCB

CPCB OGD · OpenAQ ID 5586

3 campuses

AIIMS · 1.6 km Gargi · 0.5 km KNC · 0.6 km

Chandni Chowk, Delhi - IITM

CPCB OGD · OpenAQ ID 11603

2 campuses

Hansraj · 3.0 km IP College · 2.7 km

CRRI Mathura Road, Delhi - IITM

CPCB OGD · OpenAQ ID 5627

2 campuses

Jamia · 1.6 km IIIT Delhi · 0.8 km

Nehru Nagar, Delhi - DPCC

CPCB OGD · OpenAQ ID 8365

2 campuses

LSR · 1.6 km PGDAV · 0.1 km

DTU, Delhi - CPCB

CPCB OGD · OpenAQ ID 5626

1 campus

DTU · 0.6 km

IHBAS, Dilshad Garden, Delhi - CPCB

CPCB OGD · OpenAQ ID 6359

1 campus

UCMS · 0.7 km

IIT Delhi, Delhi - IITM

IITM

1 campus

IIT Delhi · 0.2 km

ITO, Delhi - CPCB

CPCB OGD · OpenAQ ID 5613

1 campus

MAMC · 0.8 km

JNU, Delhi - DPCC

DPCC

1 campus

JNU · 0.6 km

Mandir Marg, Delhi - DPCC

DPCC

1 campus

LHMC · 1.1 km

NSIT Dwarka, Delhi - CPCB

CPCB OGD · OpenAQ ID 5622

1 campus

NSUT · 0.6 km

Rohini, Delhi - DPCC

CPCB OGD · OpenAQ ID 10831

1 campus

Dr BSA · 2.1 km

Talkatora Garden, Delhi - DPCC

DPCC

1 campus

ABVIMS · 0.7 km

Why current snapshots and history are separate

CPCB OGD supplies current station snapshots. OpenAQ supplies station geography in bulk without requesting sensor histories, which keeps normal page loads well below its free rate limit. A single campus detail page may request matched 24-hour history on demand. If either layer is missing, the interface says so.