巴特那的空气质量

巴特那的空气质量指数(AQI)和PM2.5空气污染

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空气质量提供者和数据来源

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天气

巴特那现在的天气怎么样?

天气图标
天气
温度69.8°C
湿度43%
风速和风向6.2 mp/h
气压1008 mb

实时AQI城市排名

实时印度 热门城市排名

小提示图标
#city美国 AQI
1 Bhiwadi, 拉贾斯坦邦

366

2 Alipur, 德里

286

3 Baraut, 北方邦

275

4 Ghaziabad, 北方邦

245

5 Hajipur, 比哈尔邦

244

6 Muzaffarpur, 比哈尔邦

229

7 Pitampura, 德里

217

8 阿格拉, 北方邦

208

9 North Guwahati, 阿萨姆邦

208

10 Jind, 哈里亚纳邦

196

(当地时间)

查看世界AQI排名

实时巴特那 AQI排名

实时巴特那空气质量排名

小提示图标
#station美国 AQI
1 IGSC Planetarium Complex, Patna - BSPCB

216

2 NASA-Basant Bihar Colony

162

(当地时间)

查看世界AQI排名

美国 AQI

162

实时空气质量指数(AQI)
不健康

表示AQI等级的人脸

概览

巴特那现在的空气质量指数(AQI)是多少?

空气污染等级空气质量指数(AQI)主要污染物
不健康 162 美国 AQItrendPM2.5
污染物浓度
PM2.5
76 µg/m³trend

健康建议

巴特那空气污染,如何做好防护?

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预报

巴特那空气质量指数(AQI)预报

污染等级天气温度风速和风向
星期五, 4月 9

不健康 176 美国 AQI

表示AQI等级的人脸
星期六, 4月 10

不健康 169 美国 AQI

表示AQI等级的人脸
星期日, 4月 11

不健康 156 美国 AQI

表示AQI等级的人脸
星期一, 4月 12

不健康 152 美国 AQI

表示AQI等级的人脸
今天

对敏感人群不健康 132 美国 AQI

表示AQI等级的人脸
天气图标107.6°69.8°
风向261度流动

6.7 mp/h

星期三, 4月 14

对敏感人群不健康 142 美国 AQI

表示AQI等级的人脸
天气图标109.4°78.8°
风向271度流动

8.9 mp/h

星期四, 4月 15

对敏感人群不健康 150 美国 AQI

表示AQI等级的人脸
天气图标107.6°82.4°
风向266度流动

8.9 mp/h

星期五, 4月 16

对敏感人群不健康 131 美国 AQI

表示AQI等级的人脸
天气图标109.4°82.4°
风向277度流动

4.5 mp/h

星期六, 4月 17

不健康 156 美国 AQI

表示AQI等级的人脸
天气图标105.8°77°
风向74度流动

6.7 mp/h

星期日, 4月 18

不健康 157 美国 AQI

表示AQI等级的人脸
天气图标105.8°78.8°
风向343度流动

2.2 mp/h

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历史

巴特那历史空气质量图表

如何更好地远离空气污染侵害?

减少您在巴特那 空气的污染暴露值

巴特那 空气质量分析和数据

What is the air quality index of Patna?

Patna is the capital city of Bihar and is situated on the banks of the river Ganges in Eastern India. It is also very close to three other large river systems which not only make it make it unique but also the largest riverine city in the world. Towards the end of 2020 Patna experienced some extremely poor air quality with some days returning readings from the hazardous zone. The average PM2.5 measurement for 2019 was 82.1 µg/m³. Which was an improvement on the 2018 and 2017 figures which were 119.7 µg/m³ and 118.5 µg/m³ respectively. For just 2 months in 2019 Patna experienced “Moderate “air quality with figures in the low 30s. Four of the remaining months put it in the “Unhealthy” category with figures between 55.5 and 150 µg/m³. During November, December and January the air quality was recorded as being in the “Very unhealthy” bracket with figures of between 150.5 to 250.4 µg/m³. The remaining three months recorded levels put Patna in the “Unhealthy for sensitive groups” category. These quoted figures are a direct indication of the air quality index with figures recommended by the World Health Organisation (WHO).

Why Patna is polluted?

In November 2019, Patna was declared to be the most polluted city in Bihar with PM2.5 levels reaching a staggering 428 µg/m³. The reason behind this sharp unexpected rise is that, due to floods, straw from Paddy fields is being burnt in nearby areas which adds particles to the fog that is already present there which formed because of the governments’ construction works being carried out in the city. The State Pollution Control Board has complained to the local authorities about the burning of garbage and stubble in the fields. Their answer was that this trend needs to be suspended immediately with the cooperation of the Department of Agriculture, otherwise the situation will worsen.

One of the more unusual reasons for the poor air quality is due to the river Ganges changing its course over the past two decades. Over this time, it has moved 4 kilometres away from the city, leaving large areas of dry sand which was once the river bed. This dry sand is picked up by the strong winds blowing in from the Himalayas and depositing it across the city.

This situation is compounded by a large amount of traffic on the roads which churn up the dust after it has settled and send it airborne once more. The mining of sand has been stopped but the transportation of it on open lorries continues unchecked.

The construction industry needs to be encouraged to shield the spread of dust into the environment and spray the ground with water to stop the dust rising up. These regulations are seldom adhered to for any notable length of time.

Is air pollution in Patna getting worse?

People still burn wood, coal and dried dung cakes as fuel both for cooking and for heating purposes in the cooler months. Dried leaves and other organic matter are often disposed of in this way. According to the website operated by the Bihar State Pollution Control Board (BSPCB) the AQI in Patna was 430 at noon on 27th November 2019 falling slightly to 427 at 3 pm and 425 at 4 pm. It had been 419 on 26th November and 404 on the day before. All of these figures classify it as “severe”. It fell slightly over the next 2 consecutive days to 395 and 398, but these figures are still classed as “Very Poor”. The board added that the figures were not as accurate as was thought because they all came from just one monitoring station. Four new ambient stations were added during the following month.

What can be done to improve the air quality in Patna?

The local authorities intend to plant trees on the dried-up river bed to create a green zone. The land will be very fertile and trees should soon establish themselves as a green belt and stop the sand from blowing away. The board intend to plant up to 117 varieties of local trees from between 3 to 20 metres high, to help combat climate change. Unfortunately, due to the lack of funds, this project has yet to start.

The Central Pollution Control Board considers PM2.5 levels in the air to be a normal range from 60 to 90 µg/m³, but according to the World Health Organization (WHO) standard, the annual average of PM2.5 should not exceed 40 µg/m³ (micrograms per cubic meter). During the last year, for not a single day has the air of Patna and Muzaffarpur been recorded at the standard level of the World Health Organization.

What are the effects on health through breathing in Patna’s polluted air?

Towards the end of 2020, measurements were taken from the monitoring stations which indicated that Patna was experiencing pollution levels classed as “Hazardous”. The figures are in excess of US AQI 300, getting as high as 369 on some days.

With pollution at these levels, the general advice is to stay at home and close all doors and windows to prevent the dirty air from entering and avoid any outdoor activity, if possible. If a trip outside is unavoidable then it is advisable to wear a good quality mask and limit the time spent away from home.

Even people who are healthy can suffer health effects from exposure to polluted air. This will vary from person to person and it depends on many factors such as the type of pollutant and its concentration level, your current state of health and the length of time exposed to the dirty air.

High levels of pollution cause respiratory illnesses and put extra stress on the heart and lungs. Cells can become irreparably damaged, too. The ageing of the lungs accelerates as they must work harder to get the level of oxygen that the body needs. Diseases such as asthma, bronchitis, emphysema and even cancer can be attributed to exposure to polluted air.

The most susceptible groups of people are those with existing medical problems, pregnant women, children under the age of 14 years and senior citizens.

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