Air Pollution in West Bengal: Real-time Air Quality Index and smog alert.

Current data from stations: Asansol Court Area, Asansol - WBPCB Ballygunge, Kolkata - WBPCB Bidhannagar, Kolkata - WBPCB Fort William, Kolkata - WBPCB Jadavpur, Kolkata - WBPCB Rabindra Sarobar, Kolkata - WBPCB US Diplomatic Post: Kolkata Victoria, Kolkata - WBPCB Belur Math, Howrah - WBPCB Ghusuri, Howrah - WBPCB Padmapukur, Howrah - WBPCB US Diplomatic Post: Kolkata Haldia, Haldia - WBPCB Sidhu Kanhu Indoor Stadium, Durgapur - WBPCB Ward-32 Bapupara, Siliguri - WBPCB

Locations: Howrah » Darjeeling » Kolkata » Purba Bardhaman » Bankura » Medinipur West » Medinipur East » North 24 Parganas »

Pollution and air quality forecast for West Bengal. Today is Friday, April 26, 2024. The following air pollution values have been recorded for West Bengal:

sulfur dioxide (SO2) - 11 (Good)
particulate matter (PM2.5) dust - -19 (Good)
carbon monoxide (CO) - 609 (Good)
particulate matter (PM10) suspended dust - 110 (Very Unhealthy)
ozone (O3) - 22 (Good)
nitrogen dioxide (NO2) - 20 (Good)

Real-time Air Quality Index (AQI) for West Bengal, Monday, October 31, 2022: 5.

AQI 5 Very Unhealthy

What is the air quality in West Bengal today? Is the air polluted in West Bengal?. Is there smog?

Today (Monday, October 31, 2022) air quality is very poor in West Bengal. Healthy people will commonly show symptoms of respiratory problem. People with respiratory or heart diseases will be significantly affected by air quality and will experience reduced endurance in in typical outdoor activities. Children, seniors and individuals with heart or lung diseases should stay indoors and avoid outdoor activities in West Bengal. Other residents should reduce outdoor activities.

What is the level of SO2 pollution? (sulfur dioxide (SO2))
11 (Good)

What is the current level of PM2.5 in West Bengal? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: -19 (Good) For comparison, the highest level of PM2.5 in West Bengal in the last 7 days was: 194 (Wednesday, October 12, 2022) and the lowest: -999 (Sunday, October 1, 2023). The highest PM2.5 values were recorded: 187 (January 2019). The lowest level of particulate matter PM2.5 pollution occurs in month: September (21).

How high is the CO level? (carbon monoxide (CO))
609 (Good)

What is the level of PM10 today in West Bengal? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in West Bengal is: 110 (Very Unhealthy) The highest PM10 values usually occur in month: 222 (January 2017). The lowest value of particulate matter PM10 pollution in West Bengal is usually recorded in: June (27).

How is the O3 level today in West Bengal? (ozone (O3))
22 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
20 (Good)

Current data Monday, October 31, 2022, 1:45 AM

SO2 11 (Good)

PM2,5 -19 (Good)

CO 609 (Good)

PM10 110 (Very Unhealthy)

O3 22 (Good)

NO2 20 (Good)

Data on air pollution from recent days in West Bengal

index	2022-10-31	2022-10-07	2022-10-08	2022-10-09	2022-10-10	2022-10-11	2022-10-12	2022-10-13	2022-10-14	2023-09-26	2023-09-27	2023-09-28	2023-09-29	2023-09-30	2023-10-01	2023-10-02	2023-10-03	2024-01-31	2024-02-01	2024-02-02	2024-02-03
so2	10 Good	10 Good	10 Good	10 Good	10 Good	8 Good	9 Good	5 Good	6 Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good
pm25	45 Unhealthy for Sensitive Groups	17 Moderate	19 Moderate	11 Good	12 Good	13 Moderate	194 Very bad Hazardous	15 Moderate	18 Moderate	20 Moderate	30 Moderate	2 Good	64 Unhealthy	-109 Good	-999 Good	-999 Good	-999 Good	96 Very Unhealthy	77 Very Unhealthy	119 Very bad Hazardous	124 Very bad Hazardous
co	629 Good	365 Good	273 Good	215 Good	301 Good	244 Good	446 Good	434 Good	568 Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good
pm10	118 Very Unhealthy	39 Moderate	40 Moderate	29 Moderate	34 Moderate	33 Moderate	43 Moderate	41 Moderate	60 Unhealthy for Sensitive Groups	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good
o3	15 Good	26 Good	34 Good	29 Good	26 Good	13 Good	24 Good	24 Good	29 Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good
no2	22 Good	13 Good	12 Good	11 Good	12 Good	14 Good	16 Good	13 Good	13 Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good	- Good

data source »

pollution pm25 hikersbay.com — Air pollution in West Bengal from December 2015 to May 2020

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-02	2018-01	2019-06	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2019-03	2019-01	2018-12	2018-07	2018-06	2018-05	2018-04	2018-03	2017-12	2017-11	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03	2016-02	2016-01	2015-12
pm25	21 (Moderate)	27 (Moderate)	54 (Unhealthy for Sensitive Groups)	92 (Very Unhealthy)	115 (Very bad Hazardous)	108 (Very Unhealthy)	110 (Very bad Hazardous)	64 (Unhealthy)	21 (Moderate)	24 (Moderate)	26 (Moderate)	21 (Moderate)	34 (Moderate)	117 (Very bad Hazardous)	108 (Very Unhealthy)	64 (Unhealthy)	35 (Unhealthy for Sensitive Groups)	23 (Moderate)	106 (Very Unhealthy)	161 (Very bad Hazardous)	27 (Moderate)	48 (Unhealthy for Sensitive Groups)	40 (Unhealthy for Sensitive Groups)	32 (Moderate)	36 (Unhealthy for Sensitive Groups)	33 (Moderate)	40 (Unhealthy for Sensitive Groups)	45 (Unhealthy for Sensitive Groups)	60 (Unhealthy)	121 (Very bad Hazardous)	151 (Very bad Hazardous)	185 (Very bad Hazardous)	162 (Very bad Hazardous)	68 (Unhealthy)	21 (Moderate)	62 (Unhealthy)	187 (Very bad Hazardous)	174 (Very bad Hazardous)	30 (Moderate)	40 (Unhealthy for Sensitive Groups)	27 (Moderate)	58 (Unhealthy)	155 (Very bad Hazardous)	162 (Very bad Hazardous)	101 (Very Unhealthy)	36 (Unhealthy for Sensitive Groups)	33 (Moderate)	29 (Moderate)	35 (Unhealthy for Sensitive Groups)	41 (Unhealthy for Sensitive Groups)	73 (Unhealthy)	100 (Very Unhealthy)	161 (Very bad Hazardous)	162 (Very bad Hazardous)
pm10	41 (Moderate)	53 (Unhealthy for Sensitive Groups)	102 (Unhealthy)	174 (Very bad Hazardous)	191 (Very bad Hazardous)	192 (Very bad Hazardous)	214 (Very bad Hazardous)	92 (Unhealthy)	39 (Moderate)	44 (Moderate)	53 (Unhealthy for Sensitive Groups)	35 (Moderate)	75 (Unhealthy for Sensitive Groups)	208 (Very bad Hazardous)	169 (Very bad Hazardous)	116 (Very Unhealthy)	65 (Unhealthy for Sensitive Groups)	43 (Moderate)	220 (Very bad Hazardous)	222 (Very bad Hazardous)	56 (Unhealthy for Sensitive Groups)	84 (Unhealthy)	76 (Unhealthy for Sensitive Groups)	65 (Unhealthy for Sensitive Groups)	51 (Unhealthy for Sensitive Groups)	57 (Unhealthy for Sensitive Groups)	63 (Unhealthy for Sensitive Groups)	77 (Unhealthy for Sensitive Groups)	97 (Unhealthy)	181 (Very bad Hazardous)	222 (Very bad Hazardous)	200 (Very bad Hazardous)	181 (Very bad Hazardous)	110 (Unhealthy)	39 (Moderate)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	72 (Unhealthy for Sensitive Groups)	88 (Unhealthy)	148 (Very Unhealthy)	157 (Very bad Hazardous)	109 (Unhealthy)	33 (Moderate)	30 (Moderate)	27 (Moderate)	91 (Unhealthy)	58 (Unhealthy for Sensitive Groups)	101 (Unhealthy)	- (Good)	- (Good)	- (Good)
no2	13 (Good)	15 (Good)	38 (Good)	57 (Moderate)	59 (Moderate)	51 (Moderate)	59 (Moderate)	27 (Good)	19 (Good)	21 (Good)	21 (Good)	20 (Good)	21 (Good)	61 (Moderate)	49 (Moderate)	41 (Moderate)	23 (Good)	19 (Good)	52 (Moderate)	47 (Moderate)	19 (Good)	34 (Good)	29 (Good)	27 (Good)	33 (Good)	29 (Good)	29 (Good)	25 (Good)	31 (Good)	51 (Moderate)	73 (Moderate)	62 (Moderate)	87 (Moderate)	42 (Moderate)	23 (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	25 (Good)	34 (Good)	41 (Moderate)	29 (Good)	30 (Good)	21 (Good)	21 (Good)	22 (Good)	14 (Good)	11 (Good)	14 (Good)	- (Good)	- (Good)	- (Good)
so2	8.4 (Good)	10 (Good)	16 (Good)	18 (Good)	18 (Good)	16 (Good)	18 (Good)	13 (Good)	12 (Good)	14 (Good)	11 (Good)	9.4 (Good)	11 (Good)	30 (Good)	21 (Good)	18 (Good)	15 (Good)	8.1 (Good)	22 (Good)	15 (Good)	4.7 (Good)	13 (Good)	21 (Good)	15 (Good)	39 (Good)	19 (Good)	32 (Good)	14 (Good)	15 (Good)	24 (Good)	- (Good)	17 (Good)	21 (Good)	18 (Good)	25 (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	12 (Good)	10 (Good)	13 (Good)	21 (Good)	19 (Good)	30 (Good)	47 (Good)	17 (Good)	24 (Good)	19 (Good)	20 (Good)	- (Good)	- (Good)	- (Good)
co	414 (Good)	454 (Good)	552 (Good)	602 (Good)	359 (Good)	529 (Good)	222 (Good)	541 (Good)	376 (Good)	363 (Good)	421 (Good)	564 (Good)	417 (Good)	554 (Good)	623 (Good)	683 (Good)	520 (Good)	413 (Good)	323 (Good)	215 (Good)	510 (Good)	465 (Good)	287 (Good)	668 (Good)	629 (Good)	430 (Good)	513 (Good)	701 (Good)	760 (Good)	247 (Good)	1.5 (Good)	276 (Good)	315 (Good)	288 (Good)	406 (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	447 (Good)	11 (Good)	37 (Good)	2 (Good)	950 (Good)	686 (Good)	677 (Good)	675 (Good)	852 (Good)	735 (Good)	955 (Good)	- (Good)	- (Good)	- (Good)
o3	38 (Good)	39 (Good)	41 (Good)	35 (Good)	32 (Good)	29 (Good)	30 (Good)	40 (Good)	19 (Good)	19 (Good)	23 (Good)	16 (Good)	24 (Good)	26 (Good)	31 (Good)	32 (Good)	21 (Good)	16 (Good)	30 (Good)	28 (Good)	25 (Good)	32 (Good)	14 (Good)	12 (Good)	16 (Good)	55 (Good)	37 (Good)	29 (Good)	24 (Good)	23 (Good)	14 (Good)	26 (Good)	33 (Good)	47 (Good)	25 (Good)	- (Good)	- (Good)	- (Good)	- (Good)	- (Good)	36 (Good)	35 (Good)	28 (Good)	- (Good)	- (Good)	29 (Good)	32 (Good)	36 (Good)	50 (Good)	49 (Good)	49 (Good)	- (Good)	- (Good)	- (Good)

data source »

Quality of life in West Bengal

Green and Parks in the City

West Bengal 50%

Nepal: 32% Bangladesh: 33% Bhutan: 82% Sri Lanka: 59% Pakistan: 49%

particulate matter PM2.5

West Bengal 85 (Very Unhealthy)

Pleasure of spending time in the city

West Bengal 37%

Nepal: 32% Bangladesh: 26% Bhutan: 61% Sri Lanka: 52% Pakistan: 43%

particulate matter PM10

West Bengal 160 (Very bad Hazardous)

Air Pollution

West Bengal 72%

Nepal: 76% Bangladesh: 78% Bhutan: 45% Sri Lanka: 53% Pakistan: 64%

Garbage Disposal

West Bengal 31%

Nepal: 25% Bangladesh: 22% Bhutan: 47% Sri Lanka: 41% Pakistan: 34%

Availability and quality of drinking water

West Bengal 56%

Nepal: 36% Bangladesh: 44% Bhutan: 64% Sri Lanka: 65% Pakistan: 44%

Cleanliness and tidiness

West Bengal 30%

Nepal: 27% Bangladesh: 23% Bhutan: 57% Sri Lanka: 52% Pakistan: 40%

Noise and Light pollution

West Bengal 56%

Nepal: 55% Bangladesh: 63% Bhutan: 55% Sri Lanka: 50% Pakistan: 59%

Water Pollution

West Bengal 67%

Nepal: 76% Bangladesh: 74% Bhutan: 56% Sri Lanka: 57% Pakistan: 70%

Source: Numbeo

Asansol Court Area, Asansol - WBPCB

Monday, October 31, 2022, 1:45 AM

SO2 9.3 (Good)

sulfur dioxide (SO2)

PM2,5 74 (Unhealthy)

particulate matter (PM2.5) dust

CO 860 (Good)

carbon monoxide (CO)

PM10 183 (Very bad Hazardous)

particulate matter (PM10) suspended dust

O3 60 (Good)

ozone (O3)

NO2 37 (Good)

nitrogen dioxide (NO2)

Ballygunge, Kolkata - WBPCB

Friday, October 14, 2022, 6:00 AM

PM2,5 11 (Good)

particulate matter (PM2.5) dust

O3 75 (Moderate)

ozone (O3)

SO2 12 (Good)

sulfur dioxide (SO2)

PM10 76 (Unhealthy for Sensitive Groups)

particulate matter (PM10) suspended dust

CO 610 (Good)

carbon monoxide (CO)

NO2 9.8 (Good)

nitrogen dioxide (NO2)

Bidhannagar, Kolkata - WBPCB

Friday, October 14, 2022, 5:45 AM

NO2 15 (Good)

nitrogen dioxide (NO2)

PM2,5 31 (Moderate)

particulate matter (PM2.5) dust

O3 46 (Good)

ozone (O3)

CO 570 (Good)

carbon monoxide (CO)

SO2 3.6 (Good)

sulfur dioxide (SO2)

PM10 84 (Unhealthy)

particulate matter (PM10) suspended dust

Fort William, Kolkata - WBPCB

Monday, October 31, 2022, 1:45 AM

PM2,5 36 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

PM10 104 (Unhealthy)

particulate matter (PM10) suspended dust

NO2 31 (Good)

nitrogen dioxide (NO2)

SO2 8.9 (Good)

sulfur dioxide (SO2)

CO 540 (Good)

carbon monoxide (CO)

O3 12 (Good)

ozone (O3)

Jadavpur, Kolkata - WBPCB

Monday, October 31, 2022, 2:00 AM

PM10 103 (Unhealthy)

particulate matter (PM10) suspended dust

SO2 5.6 (Good)

sulfur dioxide (SO2)

PM2,5 52 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

CO 1190 (Good)

carbon monoxide (CO)

NO2 13 (Good)

nitrogen dioxide (NO2)

O3 7.9 (Good)

ozone (O3)

Rabindra Sarobar, Kolkata - WBPCB

Monday, October 31, 2022, 1:45 AM

PM2,5 47 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

PM10 71 (Unhealthy for Sensitive Groups)

Saturday, February 3, 2024, 9:00 PM

PM2,5 154 (Very bad Hazardous)

particulate matter (PM2.5) dust

Haldia, Haldia - WBPCB

Monday, October 31, 2022, 2:00 AM

CO 810 (Good)

carbon monoxide (CO)

O3 15 (Good)

ozone (O3)

NO2 17 (Good)

nitrogen dioxide (NO2)

PM10 85 (Unhealthy)

particulate matter (PM10) suspended dust

SO2 15 (Good)

sulfur dioxide (SO2)

PM2,5 24 (Moderate)

particulate matter (PM2.5) dust

Sidhu Kanhu Indoor Stadium, Durgapur - WBPCB

Monday, October 31, 2022, 1:45 AM

PM10 166 (Very bad Hazardous)

particulate matter (PM10) suspended dust

NO2 21 (Good)

nitrogen dioxide (NO2)

SO2 18 (Good)

sulfur dioxide (SO2)

CO 1190 (Good)

carbon monoxide (CO)

O3 1.4 (Good)

ozone (O3)

PM2,5 50 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

Ward-32 Bapupara, Siliguri - WBPCB

Monday, October 31, 2022, 1:45 AM

O3 25 (Good)

ozone (O3)

PM2,5 62 (Unhealthy)

particulate matter (PM2.5) dust

PM10 259 (Very bad Hazardous)

particulate matter (PM10) suspended dust

NO2 24 (Good)

nitrogen dioxide (NO2)

CO 300 (Good)

carbon monoxide (CO)

Asansol Court Area, Asansol - WBPCB

index	2022-10-31
so2	9.8
pm25	73
co	965
pm10	171
o3	54
no2	37

Ballygunge, Kolkata - WBPCB

index	2022-10-14	2022-10-13	2022-10-12	2022-10-11	2022-10-10	2022-10-09	2022-10-08	2022-10-07
co	549	398	319	202	161	155	202	289
pm10	58	44	25	28	26	24	37	36
o3	39	33	24	19	41	68	76	63
no2	9.9	11	19	15	16	16	18	18
pm25	15	14	528	10	10	10	16	11
so2	8.4	5.9	11	12	12	11	13	11

Bidhannagar, Kolkata - WBPCB

index	2022-10-14	2022-10-13	2022-10-12	2022-10-11	2022-10-10	2022-10-09	2022-10-08	2022-10-07
o3	19	14	15	13	32	13	21	11
pm25	21	16	14	13	8.1	11	15	13
no2	16	16	15	16	12	11	13	15
so2	4.6	4.7	4.1	4	8.8	8.3	8.3	7.9
pm10	61	38	25	22	26	28	37	29
co	588	471	466	340	519	318	360	357

Fort William, Kolkata - WBPCB

index	2022-10-31
pm25	36
pm10	104
no2	31
so2	8.9
co	540
o3	12

Jadavpur, Kolkata - WBPCB

index	2022-10-31
pm10	101
so2	5.6
pm25	52
co	1235
no2	13
o3	7.4

Rabindra Sarobar, Kolkata - WBPCB

index	2022-10-31
pm25	47
pm10	71
no2	42
so2	7.9
co	130
o3	7.5

US Diplomatic Post: Kolkata

index	2023-10-03	2023-10-02	2023-10-01	2023-09-30	2023-09-29	2023-09-28	2023-09-27	2023-09-26
pm25	-999	-999	-999	-109.17	64	1.8	30	20

Victoria, Kolkata - WBPCB

index	2022-10-31
pm10	129
so2	10
pm25	72
co	485
no2	19
o3	15

Belur Math, Howrah - WBPCB

index	2022-10-31
pm25	0
pm10	0
no2	0
so2	0
co	0
o3	0

Ghusuri, Howrah - WBPCB

index	2022-10-12	2022-10-11	2022-10-10	2022-10-09	2022-10-08	2022-10-07
no2	13	12	7.7	7.3	6.3	6.3
o3	32	7.8	6	5.4	6.7	3.7
pm10	80	49	51	36	46	51
pm25	39	17	17	12	26	28
so2	11	8.9	9.2	8.8	8.8	11
co	554	188	223	171	258	448

Padmapukur, Howrah - WBPCB

index	2022-10-31
pm10	69
so2	13
pm25	42
co	40
no2	20
o3	16

US Diplomatic Post: Kolkata

index	2024-02-03	2024-02-02	2024-02-01	2024-01-31
pm25	124	119	77	96

Haldia, Haldia - WBPCB

index	2022-10-31
co	840
o3	15
no2	16
pm10	78
so2	14
pm25	21

Sidhu Kanhu Indoor Stadium, Durgapur - WBPCB

index	2022-10-31
pm10	166
no2	21
so2	18
co	1190
o3	1.4
pm25	50

Ward-32 Bapupara, Siliguri - WBPCB

index	2022-10-31
o3	20
pm25	58
pm10	293
no2	25
co	860

Asansol Court Area, Asansol - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-02	2018-01
no2	12	15	32	24	46	50	51	22	7.3	23	22	20	25	4.2	54	29	13	13	63	46
so2	9.9	13	17	22	15	11	16	8.6	14	60	16	0.54	4.7	16	15	19	28	5.5	29	20
co	475	502	617	841	967	751	923	532	342	338	375	402	410	725	949	728	623	1	1	1
o3	21	26	28	31	80	22	38	28	16	9.2	12	14	41	7.4	25	36	27	34	26	35
pm25	33	32	52	82	95	96	115	51	22	26	29	21	48	97	95	64	35	27	99	107
pm10	59	76	104	157	163	166	212	71	29	39	46	39	103	143	154	109	65	45	179	164

Fort William, Kolkata - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06
pm25	20	28	54	74	117	107	117	67	23	26	27	31
pm10	44	46	89	146	217	196	218	102	41	46	54	60
no2	11	11	41	75	71	57	64	30	21	22	12	16
so2	5.8	6.3	9.7	13	11	11	7	5.3	5.4	4.5	7.3	2.5
co	337	368	613	974	1	985	1	637	401	402	323	296
o3	39	48	43	40	34	34	29	29	21	18	30	29

Jadavpur, Kolkata - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06
pm25	15	23	49	77	115	62	84	67	13	20	20	25
pm10	35	49	91	152	145	151	163	86	22	31	34	47
no2	8.6	9.4	24	50	47	44	44	21	9.4	15	11	11
so2	6.7	7.1	9.4	9.8	9.8	8.1	8.9	6.6	4.9	5.4	7.9	2.2
co	429	458	743	1	1	1	1	767	408	424	354	371
o3	42	40	28	16	9.9	16	14	16	11	8.8	17	18

Rabindra Bharati University, Kolkata - WBSPCB

index	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09
no2	36	40	38	34	31	35	39	40	46	41	42	186	69	31
co	583	573	578	527	513	556	597	704	1	1	1	1	1	712
o3	40	14	12	13	23	24	20	22	25	16	14	33	73	26
pm10	100	86	66	72	80	86	103	137	245	260	291	229	168	49
so2	12	15	15	19	20	34	9	6.9	20	-	-	-	-	-

US Diplomatic Post: Kolkata

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-12	2018-11	2018-10	2018-09	2018-08	2018-07	2018-06	2018-05	2018-04	2018-03	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03	2016-02	2016-01	2015-12
pm25	20	28	61	120	141	148	128	54	19	15	19	22	36	33	62	94	187	174	125	79	62	33	30	40	32	43	82	104	209	162	101	48	40	32	36	33	40	45	60	121	151	185	162	68	21	36	33	29	35	41	73	100	161	162

Victoria Memorial - WBSPCB

index	2017-10	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06
co	1	638	775	1	758	899	1	2	1	2	1	506	524	559	553
o3	24	19	87	50	39	26	22	13	14	15	16	12	14	17	17
no2	45	46	39	37	20	26	66	104	103	42	36	22	26	22	21
pm10	96	30	54	51	59	66	139	184	158	143	76	24	29	24	16
so2	5.8	11	11	-	-	-	-	-	-	-	-	-	-	-	-

Victoria, Kolkata - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-05	2018-04
pm25	18	23	46	85	102	94	91	61	19	23	25	13	24	142	112	68	38	17	19	24
pm10	34	41	93	169	195	181	182	89	41	40	44	25	48	245	165	113	65	36	50	54
no2	13	11	45	76	71	50	90	49	28	23	21	19	19	123	68	48	36	29	30	32
so2	6.4	9.6	14	16	9.8	11	7.4	4.5	4.9	3.8	6.2	2.1	5.8	30	12	7.7	4.3	1.6	5.5	8.4
co	617	710	1	464	1	2	2	1	1	1	1	568	597	1	1	1	1	1	1	1
o3	31	47	73	55	37	41	37	27	25	27	37	18	17	31	32	32	19	8.8	34	45

Belur Math, Howrah - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06
pm25	11	19	34	57	91	102	111	64	24	29	32	27
pm10	23	42	81	132	181	204	236	109	50	53	66	62
no2	14	18	49	72	66	45	69	36	28	30	30	27
so2	8.7	13	20	26	21	23	25	19	13	13	16	9.3
co	217	302	553	845	1	741	1	576	427	451	435	409
o3	-	-	55	50	42	43	38	34	13	17	26	33

Ghusuri, Howrah - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-05
pm25	23	28	70	121	154	164	180	111	38	41	43	19	30	155	101	58	30	26	28
pm10	54	66	159	286	376	371	471	191	77	80	102	54	89	325	224	153	80	46	72
no2	14	15	37	71	75	61	79	14	11	15	34	27	25	96	62	59	40	26	22
so2	7.3	7.6	27	31	48	39	54	19	15	13	5	0.34	0.62	80	52	38	17	10	17
co	291	320	658	1	1	1	1	692	416	451	475	485	470	1	994	917	730	533	406
o3	46	38	24	27	29	37	38	31	26	31	25	6.8	11	26	34	38	24	19	60

Padmapukur, Howrah - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-05	2018-04	2018-03	2018-02	2018-01
no2	11	9	28	40	53	53	53	28	27	24	23	18	15	66	40	30	11	4.8	5.4	14	19	28	47
so2	9.5	10	15	8.8	9.1	13	13	16	5.1	4	10	7.7	25	25	20	16	11	1.5	2.1	2.9	1.6	18	8.6
co	474	432	538	806	960	932	1	540	499	374	316	440	462	851	728	574	466	600	388	14	34	967	1
pm25	24	22	53	99	116	101	97	59	18	20	26	18	32	149	126	74	25	19	29	64	146	116	168
pm10	37	42	84	159	168	170	172	82	40	40	49	32	57	217	198	133	76	45	67	77	127	221	270
o3	52	45	50	33	25	24	36	43	27	30	32	18	35	49	52	56	39	13	37	45	34	34	21

Haldia - WBSPCB

index	2018-01	2017-12	2017-11	2017-10	2017-09	2017-08	2017-07	2017-06	2017-05	2017-04	2017-03	2017-02	2016-12	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03
no2	35	29	30	23	17	16	19	16	17	16	28	41	41	34	20	15	16	20	23	14	11	14
o3	-	-	-	-	-	-	-	-	-	-	-	-	50	52	51	37	45	46	55	50	49	49
pm10	210	157	109	57	66	63	50	37	52	70	87	158	152	172	86	43	37	35	38	91	58	101
so2	19	21	19	20	27	-	88	26	31	20	23	28	17	21	18	25	30	47	17	24	19	20
co	856	2	950	812	1	758	723	1	981	749	677	738	825	941	861	1	847	794	796	852	735	955

Haldia, Haldia - WBPCB

index	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-05	2018-04	2018-03
pm10	92	122	112	69	15	30	32	21	42	168	141	105	55	31	43	59	94
no2	-	-	-	-	-	-	-	14	13	38	29	24	15	14	9.2	17	24
so2	17	15	15	27	33	7.6	11	19	17	17	11	13	16	14	19	19	24
co	-	-	-	-	-	-	-	-	-	-	1	912	596	553	341	7	25
o3	10	12	14	123	12	14	14	11	9.7	14	21	22	17	15	19	22	21

Sidhu Kanhu Indoor Stadium, Durgapur - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2019-10	2019-09	2019-08	2019-07	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-05	2018-04	2018-03	2018-02	2018-01
no2	-	-	-	-	-	-	-	-	-	-	-	57	72	30	31	61	72	71	64	63
so2	13	13	13	13	14	14	15	16	27	14	13	15	11	-	16	15	14	17	20	13
co	-	-	-	-	-	-	-	814	519	560	872	892	946	671	713	779	17	47	1	1
pm10	-	-	-	-	44	38	49	69	39	129	-	143	112	66	65	141	160	218	259	243
o3	-	-	-	-	-	-	-	-	-	-	-	26	10	7	7.8	19	19	-	-	-

Ward-32 Bapupara, Siliguri - WBPCB

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-02	2018-11	2018-10	2018-09	2018-08	2018-05	2018-04	2018-03
pm25	28	43	66	117	107	97	67	41	17	19	16	28	20	35	66	88	41	23	17	27	101	238
pm10	41	67	115	193	183	166	161	74	33	35	30	54	34	56	147	161	86	47	34	59	89	155
no2	24	27	51	52	44	44	27	16	20	16	16	23	24	26	40	36	26	18	16	24	34	49
so2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	7.8	8.3
co	469	543	690	885	941	817	845	583	513	463	694	963	971	1	872	798	706	552	488	769	18	43
o3	35	30	27	26	25	28	29	25	16	15	17	19	29	33	30	28	34	17	15	44	45	29

* Pollution data source: https://openaq.org (caaqm, CPCB, StateAir_Kolkata) The data is licensed under CC-By 4.0