Ludhiana的空气质量

Ludhiana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

数据来自

数据提供者

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数据来源

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NASA - National Aeronautics and Space Administration的主页标志Central Pollution Control Board的主页标志PurpleAir的主页标志Central Pollution Control Board的主页标志

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天气

Ludhiana现在的天气怎么样?

天气图标
天气晴朗
温度73.4°C
湿度26%
风速和风向5.9 mp/h
气压1010 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 Baraut, 北方邦

275

3 Ghaziabad, 北方邦

245

4 Hajipur, 比哈尔邦

235

5 Muzaffarpur, 比哈尔邦

229

6 Pitampura, 德里

217

7 阿格拉, 北方邦

208

8 Jind, 哈里亚纳邦

196

9 古瓦哈提, 阿萨姆邦

194

10 Khagaul, 比哈尔邦

185

(当地时间)

查看世界AQI排名

实时Ludhiana AQI排名

实时Ludhiana空气质量排名

小提示图标
#station美国 AQI
1 NASA- Mahagni Marg

127

2 Punjab Agricultural University, Ludhiana - PPCB

86

(当地时间)

查看世界AQI排名

美国 AQI

127

实时空气质量指数(AQI)
对敏感人群不健康

表示AQI等级的人脸

概览

Ludhiana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
对敏感人群不健康 127 美国 AQItrendPM2.5
污染物浓度
PM2.5
46.1 µg/m³trend

健康建议

Ludhiana空气污染,如何做好防护?

IQAir口罩图标 Sensitive groups should wear a mask outdoors
来一个高效又舒适的口罩
IQAir净化器图标 请开启空气净化器
想要一台空气净化器吗?
开窗图标请关窗以防止室外脏空气进入室内
骑车图标Everyone should reduce outdoor exercise

预报

Ludhiana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

对敏感人群不健康 105 美国 AQI

表示AQI等级的人脸
星期六, 4月 10

对敏感人群不健康 115 美国 AQI

表示AQI等级的人脸
星期日, 4月 11

对敏感人群不健康 130 美国 AQI

表示AQI等级的人脸
星期一, 4月 12

中等 99 美国 AQI

表示AQI等级的人脸
今天

对敏感人群不健康 122 美国 AQI

表示AQI等级的人脸
天气图标102.2°73.4°
风向305度流动

6.7 mp/h

星期三, 4月 14

对敏感人群不健康 125 美国 AQI

表示AQI等级的人脸
天气图标104°75.2°
风向244度流动

8.9 mp/h

星期四, 4月 15

对敏感人群不健康 120 美国 AQI

表示AQI等级的人脸
天气图标102.2°71.6°
风向14度流动

6.7 mp/h

星期五, 4月 16

对敏感人群不健康 113 美国 AQI

表示AQI等级的人脸
天气图标96.8°75.2°
风向188度流动

8.9 mp/h

星期六, 4月 17

对敏感人群不健康 130 美国 AQI

表示AQI等级的人脸
天气图标89.6°66.2°
风向124度流动

2.2 mp/h

星期日, 4月 18

对敏感人群不健康 125 美国 AQI

表示AQI等级的人脸
天气图标96.8°69.8°
风向42度流动

4.5 mp/h

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历史

Ludhiana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Ludhiana 空气的污染暴露值

Ludhiana 空气质量分析和数据

Is Ludhiana a polluted city?

Ludhiana is a city located in the Indian state of Punjab, being one of the largest cities in the state and a heavily industrialized hub of northern India, often referred to as ‘the Manchester of India’ by the BBC, pertaining the massive industrialization that Manchester in the United Kingdom underwent during the previous century.

Looking at the pollution readings taken over the course of 2019, one can see that Ludhiana came in with a yearly PM2.5 average of 49.3 μg/m³, a somewhat high reading that put it into the ‘unhealthy for sensitive groups’ bracket, a grouping that requires a PM2.5 reading of anywhere between 35.5 to 55.4 μg/m³ to be classified as such. As the name implies, this level of air quality can cause a large amount of problems for certain demographics of the population, with groups such as young children, the elderly, the immunocompromised or any ill people with preexisting health conditions being most at risk. Pregnant women are also particularly vulnerable due to the effect that pollution can have on unborn babies.

Ludhiana's reading of 49.3 μg/m³ put it into 127th place out of all cities ranked worldwide in 2019, a poor placing showing that the air would be permeated with smog, haze and smoke for most of the year, with many months of the year showing even higher readings, and no periods of respite (as is seen in some polluted cities, often they will have a few months of cleaner air quality due to changes in human activity or the weather).

Ludhiana also came in at 44th place out of all cities ranked in India, and considering that India itself ranked 5th place out of all countries worldwide in 2019, is even further proof that Ludhiana is suffering from some pollution related issues and poor air quality.

What are the main causes of pollution in Ludhiana?

Looking at the multiple sources of where pollution seems to arise from in the city, there are several that stand out as being the most prominent, whilst others are contributing factors that whilst not as pollutive, still contribute to the year round ambient pollution readings.

One of the main sources of pollution is that of vehicle emissions, and with some 1.6 million people living there (from a census taken in 2011, most likely not indicative of how much the population has grown since then) would be that of vehicle emissions, with hundreds of thousands of vehicles populating the roads, often running on poorer quality fuels, as well as diesel fuels, both of which put out far more pollution than their cleaner or non fossil fuel counterparts would.

Heavy duty vehicles such as lorries and trucks would be ferrying large amounts of industrial materials and goods in and out of the city, due to it being an industrial hub. Following on from this, large amounts of pollution, if not equal to or more than that of vehicle fumes, would be released into the atmosphere from the countless factories dotted around the city’s limits.

Many of these factories would lack the more stringent international pollution regulations that help to keep certain chemical outputs to a minimum. In closing, vehicles and factories are the main causes of pollution.

Other ones of note would be the open burning of trash and refuse material, both organic and synthetic, as well as the burning of charcoal and wood for cooking in poorer districts. Many construction sites and road repairs would also contribute heavily to the amounts of fine particulate matter in the air, bringing both the PM2.5 and PM10 levels up considerably.

When is pollution at its worst in Ludhiana?

Observing the data taken over the various months of 2019, there starts to emerge a clear time frame when the pollution levels are significantly elevated, although even the cleaner times of the year still held fairly poor levels of air quality.

The months that came in with the worst readings of pollution were towards the very end of the year, with the months of October through to December having the highest readings of PM2.5. PM2.5 refers to fine particulate matter that is 2.5 micrometers or less in diameter, sometimes going down to sizes as small as 0.001 microns across, and due to these properties, they are of great danger to human health when respired. As such they are used as a major component of air pollution calculation.

Looking back at the most polluted months, October through to December all came in with PM2.5 readings of 69.9 μg/m³, 78.8 μg/m³ and 62.4 μg/m³ respectively, before declining back to less hazardous (but still unsafe) levels of pollution in the earlier portions of the year.

These readings put all three months into the ‘unhealthy’ ratings bracket (55.5 to 150.4 μg/m³ required for classification), with November being the most polluted month of the year with a rather large reading of 78.8 μg/m³.

When is the air quality cleanest in Ludhiana?

Following on directly from the previous question, whilst the end of the year had the worst readings of pollution, the times of the year that had the lowest levels of PM2.5 in the air were February, and then August to September.

These are somewhat sporadic and follow no particular pattern, especially with February being surrounded by other highly polluted months. Their PM2.5 readings in order were 23.1 μg/m³, 29.1 μg/m³ and 35.2 μg/m³, making February the cleanest month in 2019, and as mentioned an abnormality as all the months it was surrounded by came in with PM2.5 readings of double Februarys number.

What are the main pollutants found in the air in Ludhiana?

With a large amount of pollution coming from industrial and vehicular sources, the pollutants would be associated largely with the combustion of fossil fuels, as well as a certain degree of industrial effluence. Toxic metals such as mercury, lead and cadmium can be found around many industrial areas, with other contaminants such as polycyclic aromatic hydrocarbons, black carbon (released from any combustion source) as well as volatile organic compounds (VOC's).

Some examples of VOC's would include benzene, methylene chloride, xylene and formaldehyde. These are particularly dangerous due to them being in a gaseous state at lower temperatures, due to their volatile nature.

Pollutants released from vehicles would be the ever present nitrogen dioxide (NO2) and sulfur dioxide (SO2), with nitrogen dioxide being the most prominent over areas that see high volumes of traffic. Finely ground gravel, soil and silica dust would also make up a large amount of additional particulate matters, with silica dust being a known carcinogen, along with the aforementioned black carbon. These are but a few of the pollutants that would be found in the air in Ludhiana.

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