Subsidiary wise

Western Coalfields Limited
AAQMS_Makardhokra-III OC Mine
20-04-2026 04:31:27
PM - 2.5 18.54 (µg/m3)
PM - 10 17.22 (µg/m3)
SO2 0 (µg/m3)
CO 0.88 (mg/m3)
NO2 2.77 (µg/m3)
Western Coalfields Limited
AAQMS_Makardhokra-III OC Mine Station_02
20-04-2026 04:32:12
PM - 2.5 37.32 (µg/m3)
PM - 10 159.78 (µg/m3)
SO2 5.64 (µg/m3)
CO 7.50 (mg/m3)
NO2 (µg/m3)
Western Coalfields Limited
AQMS_1M WCL MAJRI AREA
20-04-2026 04:30:46
PM - 2.5 15.09 (µg/m3)
PM - 10 41.65 (µg/m3)
SO2 27.74 (µg/m3)
CO 0.04 (mg/m3)
NO2 6.98 (µg/m3)
Mahanadi Coalfields Limited
Basundhara (W) OCP
20-04-2026 04:32:31
PM - 2.5 32 (µg/m3)
PM - 10 63 (µg/m3)
SO2 4.8 (µg/m3)
CO 0.84 (mg/m3)
NO2 12.8 (µg/m3)
Western Coalfields Limited
Bhanegaon OCM
20-04-2026 04:32:38
PM - 2.5 52.38 (µg/m3)
PM - 10 144.25 (µg/m3)
SO2 8.62 (µg/m3)
CO 1.00 (mg/m3)
NO2 0 (µg/m3)
Western Coalfields Limited
Bhatadi Opencast Mine
20-04-2026 04:30:37
PM - 2.5 2.21 (µg/m3)
PM - 10 (µg/m3)
SO2 5.14 (µg/m3)
CO ##### (mg/m3)
NO2 .69 (µg/m3)
Mahanadi Coalfields Limited
Lajkura OCP
20-04-2026 04:32:25
PM - 2.5 9 (µg/m3)
PM - 10 110 (µg/m3)
SO2 9.9 (µg/m3)
CO 0.78 (mg/m3)
NO2 17.7 (µg/m3)
South Eastern Coalfields Limited
M/S Kanchan OC Coal Mine
20-04-2026 04:32:29
PM - 2.5 278.87 (µg/m3)
PM - 10 363.15 (µg/m3)
SO2 40.64 (µg/m3)
CO 3.35 (mg/m3)
NO2 (µg/m3)
South Eastern Coalfields Limited
M/S Saraipali Opencast Coal Mine
20-04-2026 04:32:39
PM - 2.5 111.1 (µg/m3)
PM - 10 239.8 (µg/m3)
SO2 21.44 (µg/m3)
CO 6.71 (mg/m3)
NO2 (µg/m3)
Western Coalfields Limited
M/S WCL Sasti Open Cast Mine
20-04-2026 04:30:51
PM - 2.5 0 (µg/m3)
PM - 10 (µg/m3)
SO2 0 (µg/m3)
CO 2.24 (mg/m3)
NO2 316.44 (µg/m3)
South Eastern Coalfields
M/s Amadand OC Mine Project
20-04-2026 04:32:36
PM - 2.5 86.75 (µg/m3)
PM - 10 171.3 (µg/m3)
SO2 4.71 (µg/m3)
CO 0.57 (mg/m3)
NO2 (µg/m3)
South Eastern Coalfields Limited
M/s Dipka Expansion Project South Eastern Coal Fields Limited Dipka Area
20-04-2026 04:32:26
PM - 2.5 100.31 (µg/m3)
PM - 10 278.11 (µg/m3)
SO2 29.75 (µg/m3)
CO 2.63 (mg/m3)
NO2 (µg/m3)
Western Coalfields Limited
Mathani UG
20-04-2026 04:32:38
PM - 2.5 .45 (µg/m3)
PM - 10 40.71 (µg/m3)
SO2 5.87 (µg/m3)
CO 0.20 (mg/m3)
NO2 1.93 (µg/m3)
Northern Coalfields Limited
NCL_CETI
20-04-2026 04:18:19
PM - 2.5 362.91 (µg/m3)
PM - 10 625.71 (µg/m3)
SO2 60.68 (µg/m3)
CO 5.77 (mg/m3)
NO2 33.66 (µg/m3)
Western Coalfields Limited
Penganga Opencast Mine
20-04-2026 04:30:10
PM - 2.5 45.9 (µg/m3)
PM - 10 153.9 (µg/m3)
SO2 .73 (µg/m3)
CO 0.76 (mg/m3)
NO2 1.73 (µg/m3)
South Eastern Coalfields Limited
SECL GEVRA
20-04-2026 04:22:05
PM - 2.5 50.4 (µg/m3)
PM - 10 103.38 (µg/m3)
SO2 19.42 (µg/m3)
CO 0.62 (mg/m3)
NO2 10.71 (µg/m3)
South Eastern Coalfields Limited
SECL_DIPKA
20-04-2026 04:19:07
PM - 2.5 48.04 (µg/m3)
PM - 10 82.77 (µg/m3)
SO2 9.17 (µg/m3)
CO 0.23 (mg/m3)
NO2 2.56 (µg/m3)
South Eastern Coalfields Limited
SECL_KUSMUNDA
20-04-2026 04:31:21
PM - 2.5 2147483.75 (µg/m3)
PM - 10 58.2 (µg/m3)
SO2 7.14 (µg/m3)
CO 0.50 (mg/m3)
NO2 16.89 (µg/m3)
Mahanadi Coalfields Limited
Samaleswari OCP
20-04-2026 04:32:26
PM - 2.5 31 (µg/m3)
PM - 10 55 (µg/m3)
SO2 9 (µg/m3)
CO 0.31 (mg/m3)
NO2 10.1 (µg/m3)
South Eastern Coalfields Limited
South Eastern Coalfields Limited - AQMS_H_Q
20-04-2026 04:30:40
PM - 2.5 16.13 (µg/m3)
PM - 10 (µg/m3)
SO2 12.97 (µg/m3)
CO 0.99 (mg/m3)
NO2 270.27 (µg/m3)
Western Coalfields Limited
WCL Inder Kamptee
20-04-2026 04:32:09
PM - 2.5 48.71 (µg/m3)
PM - 10 141.61 (µg/m3)
SO2 104.17 (µg/m3)
CO ##### (mg/m3)
NO2 0 (µg/m3)

Western Coalfields Limited
AAQMS_Makardhokra-III OC Mine
20-04-2026 04:31:27
PM - 2.5 18.54 (µg/m3)
PM - 10 17.22 (µg/m3)
SO2 0 (µg/m3)
CO 0.88 (mg/m3)
NO2 2.77 (µg/m3)
Western Coalfields Limited
AAQMS_Makardhokra-III OC Mine Station_02
20-04-2026 04:32:12
PM - 2.5 37.32 (µg/m3)
PM - 10 159.78 (µg/m3)
SO2 5.64 (µg/m3)
CO 7.50 (mg/m3)
NO2 (µg/m3)
Western Coalfields Limited
AQMS_1M WCL MAJRI AREA
20-04-2026 04:30:46
PM - 2.5 15.09 (µg/m3)
PM - 10 41.65 (µg/m3)
SO2 27.74 (µg/m3)
CO 0.04 (mg/m3)
NO2 6.98 (µg/m3)
Mahanadi Coalfields Limited
Basundhara (W) OCP
20-04-2026 04:32:31
PM - 2.5 32 (µg/m3)
PM - 10 63 (µg/m3)
SO2 4.8 (µg/m3)
CO 0.84 (mg/m3)
NO2 12.8 (µg/m3)
Western Coalfields Limited
Bhanegaon OCM
20-04-2026 04:32:38
PM - 2.5 52.38 (µg/m3)
PM - 10 144.25 (µg/m3)
SO2 8.62 (µg/m3)
CO 1.00 (mg/m3)
NO2 0 (µg/m3)
Western Coalfields Limited
Bhatadi Opencast Mine
20-04-2026 04:30:37
PM - 2.5 2.21 (µg/m3)
PM - 10 (µg/m3)
SO2 5.14 (µg/m3)
CO ##### (mg/m3)
NO2 .69 (µg/m3)
Mahanadi Coalfields Limited
Lajkura OCP
20-04-2026 04:32:25
PM - 2.5 9 (µg/m3)
PM - 10 110 (µg/m3)
SO2 9.9 (µg/m3)
CO 0.78 (mg/m3)
NO2 17.7 (µg/m3)
South Eastern Coalfields Limited
M/S Kanchan OC Coal Mine
20-04-2026 04:32:29
PM - 2.5 278.87 (µg/m3)
PM - 10 363.15 (µg/m3)
SO2 40.64 (µg/m3)
CO 3.35 (mg/m3)
NO2 (µg/m3)
South Eastern Coalfields Limited
M/S Saraipali Opencast Coal Mine
20-04-2026 04:32:39
PM - 2.5 111.1 (µg/m3)
PM - 10 239.8 (µg/m3)
SO2 21.44 (µg/m3)
CO 6.71 (mg/m3)
NO2 (µg/m3)
Western Coalfields Limited
M/S WCL Sasti Open Cast Mine
20-04-2026 04:30:51
PM - 2.5 0 (µg/m3)
PM - 10 (µg/m3)
SO2 0 (µg/m3)
CO 2.24 (mg/m3)
NO2 316.44 (µg/m3)
South Eastern Coalfields
M/s Amadand OC Mine Project
20-04-2026 04:32:36
PM - 2.5 86.75 (µg/m3)
PM - 10 171.3 (µg/m3)
SO2 4.71 (µg/m3)
CO 0.57 (mg/m3)
NO2 (µg/m3)
South Eastern Coalfields Limited
M/s Dipka Expansion Project South Eastern Coal Fields Limited Dipka Area
20-04-2026 04:32:26
PM - 2.5 100.31 (µg/m3)
PM - 10 278.11 (µg/m3)
SO2 29.75 (µg/m3)
CO 2.63 (mg/m3)
NO2 (µg/m3)
Western Coalfields Limited
Mathani UG
20-04-2026 04:32:38
PM - 2.5 .45 (µg/m3)
PM - 10 40.71 (µg/m3)
SO2 5.87 (µg/m3)
CO 0.20 (mg/m3)
NO2 1.93 (µg/m3)
Northern Coalfields Limited
NCL_CETI
20-04-2026 04:18:19
PM - 2.5 362.91 (µg/m3)
PM - 10 625.71 (µg/m3)
SO2 60.68 (µg/m3)
CO 5.77 (mg/m3)
NO2 33.66 (µg/m3)
Western Coalfields Limited
Penganga Opencast Mine
20-04-2026 04:30:10
PM - 2.5 45.9 (µg/m3)
PM - 10 153.9 (µg/m3)
SO2 .73 (µg/m3)
CO 0.76 (mg/m3)
NO2 1.73 (µg/m3)
South Eastern Coalfields Limited
SECL GEVRA
20-04-2026 04:22:05
PM - 2.5 50.4 (µg/m3)
PM - 10 103.38 (µg/m3)
SO2 19.42 (µg/m3)
CO 0.62 (mg/m3)
NO2 10.71 (µg/m3)
South Eastern Coalfields Limited
SECL_DIPKA
20-04-2026 04:19:07
PM - 2.5 48.04 (µg/m3)
PM - 10 82.77 (µg/m3)
SO2 9.17 (µg/m3)
CO 0.23 (mg/m3)
NO2 2.56 (µg/m3)
South Eastern Coalfields Limited
SECL_KUSMUNDA
20-04-2026 04:31:21
PM - 2.5 2147483.75 (µg/m3)
PM - 10 58.2 (µg/m3)
SO2 7.14 (µg/m3)
CO 0.50 (mg/m3)
NO2 16.89 (µg/m3)
Mahanadi Coalfields Limited
Samaleswari OCP
20-04-2026 04:32:26
PM - 2.5 31 (µg/m3)
PM - 10 55 (µg/m3)
SO2 9 (µg/m3)
CO 0.31 (mg/m3)
NO2 10.1 (µg/m3)
South Eastern Coalfields Limited
South Eastern Coalfields Limited - AQMS_H_Q
20-04-2026 04:30:40
PM - 2.5 16.13 (µg/m3)
PM - 10 (µg/m3)
SO2 12.97 (µg/m3)
CO 0.99 (mg/m3)
NO2 270.27 (µg/m3)
Western Coalfields Limited
WCL Inder Kamptee
20-04-2026 04:32:09
PM - 2.5 48.71 (µg/m3)
PM - 10 141.61 (µg/m3)
SO2 104.17 (µg/m3)
CO ##### (mg/m3)
NO2 0 (µg/m3)

From

Expected format: DD-MON-RR

Subsidiary

Mine

Record Date	Company name	Mine name	Permissible Limit (µg/m3)	Average PM - 2.5 (µg/m3)
20-APR-2026	South Eastern Coalfields Limited	M/S Kanchan OC Coal Mine	60	81.91
20-APR-2026	South Eastern Coalfields Limited	M/S Saraipali Opencast Coal Mine	60	93.16
20-APR-2026	South Eastern Coalfields Limited	M/s Dipka Expansion Project South Eastern Coal Fields Limited Dipka Area	60	108.25
20-APR-2026	South Eastern Coalfields Limited	SECL_KUSMUNDA	60	2,147,483.75

1 - 4

Record Date	Company name	Mine name	Permissible Limit (µg/m3)	Average PM - 10 (µg/m3)
20-APR-2026	South Eastern Coalfields Limited	M/S Kanchan OC Coal Mine	100	168.74
20-APR-2026	South Eastern Coalfields Limited	M/S Saraipali Opencast Coal Mine	100	199.21
20-APR-2026	South Eastern Coalfields Limited	M/s Dipka Expansion Project South Eastern Coal Fields Limited Dipka Area	100	310.62

1 - 3

CAAQMS Data

1 - 10 of 1,702

Company Name	Area Name	Mine Name	Creation datetime	Record time	PM - 2.5 (µg/m3)	PM - 10 (µg/m3)	SO2 (µg/m3)	NO2 (µg/m3)	CO (mg/m3)	Device ID	Created by
South Eastern Coalfields Limited	Korba Area	M/S Saraipali Opencast Coal Mine	20-APR-2026 04:32	19-APR-2026 22:58	111.10	239.80	21.44	-	6.71	site_5720	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Johilla Area	M/S Kanchan OC Coal Mine	20-APR-2026 04:32	19-APR-2026 23:01	278.87	363.15	40.64	-	3.35	site_3509	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Dipka Area	M/s Dipka Expansion Project South Eastern Coal Fields Limited Dipka Area	20-APR-2026 04:32	19-APR-2026 23:02	100.31	278.11	29.75	-	2.63	site_5664	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Korba Area	M/S Saraipali Opencast Coal Mine	20-APR-2026 04:32	19-APR-2026 22:58	111.10	240.80	21.77	-	6.69	site_5720	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Dipka Area	M/s Dipka Expansion Project South Eastern Coal Fields Limited Dipka Area	20-APR-2026 04:31	19-APR-2026 23:01	100.10	275.44	30.73	-	2.69	site_5664	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Johilla Area	M/S Kanchan OC Coal Mine	20-APR-2026 04:31	19-APR-2026 23:00	278.94	362.64	43.57	-	3.36	site_3509	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Korba Area	M/S Saraipali Opencast Coal Mine	20-APR-2026 04:31	19-APR-2026 22:57	111.30	241.70	21.73	-	6.68	site_5720	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Dipka Area	M/s Dipka Expansion Project South Eastern Coal Fields Limited Dipka Area	20-APR-2026 04:31	19-APR-2026 23:01	100.00	273.46	28.98	-	2.65	site_5664	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	Johilla Area	M/S Kanchan OC Coal Mine	20-APR-2026 04:31	19-APR-2026 23:00	278.77	361.90	45.88	-	3.29	site_3509	Thermo Fisher Scientific India Private Limited
South Eastern Coalfields Limited	SECL,Kusmunda	SECL_KUSMUNDA	20-APR-2026 04:31	20-APR-2026 04:30	2,147,483.75	58.20	7.14	16.89	0.50	site_1963	Envea India Pvt Ltd

1 - 10 of 1,702

marquee

New

PM - 2.5 (µg/m3)

PM - 10 (µg/m3)

SO2 (µg/m3)

CO (mg/m3)

NO2 (µg/m3)

Permissible limit crossed for PM - 2.5 (µg/m3) in selected date range

Permissible limit crossed for PM - 10 (µg/m3) in selected date range

CAAQMS Data