Kualitas udara di Kathmandu

Indeks kualitas udara (AQI) dan polusi udara PM2.5 di Kathmandu

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Cuaca

Apa cuaca saat ini di Kathmandu?

Ikon Cuaca
CuacaBeberapa awan
Suhu71.6°C
Kelembapan23%
Angin8.1 mp/h
Tekanan1017 mb

rangking kota aqi langsung

Ranking kota Nepal real-time

#cityAQI US
1 Patan, Central Region

203

2 Nepalgunj, Mid Western

154

3 Pokhara, Western Region

152

4 Siddharthanagar, Western Region

151

5 Tulsipur, Mid Western

131

6 Dhankuta, Eastern Region

122

7 Bhaktapur, Central Region

95

8 Kathmandu, Central Region

95

9 Kirtipur, Central Region

79

10 Itahari, Eastern Region

66

(waktu setempat)

LIHAT RANGKING AQI DUNIA

peringkat aqi Kathmandu langsung

Rangking kualitas udara Kathmandu langsung

#stationAQI US
1 Ratnapark - Kathmandu

156

2 US Embassy in Phora Durbar

95

3 US Embassy in Kathmandu

70

(waktu setempat)

LIHAT RANGKING AQI DUNIA

AQI US

95

Indeks AQI langsung
Sedang

Wajah manusia yang mengindikasikan tingkat AQI

Ikhtisar

Apa kualitas udara saat ini di Kathmandu?

Tingkat polusi udaraIndeks kualitas udaraPolutan utama
Sedang 95 AQI UStrendPM2.5
PolutanKonsentrasi
PM2.5
33 µg/m³trend
o3
90 µg/m³trend

Rekomendasi Kesehatan

Bagaimana cara melindungi dari polusi udara di Kathmandu?

Ikon jendela terbukaTutup jendela anda untuk menghindari udara luar yang kotor
Ikon orang bersepedaKelompok sensitif sebaiknya mengurangi aktivitas di luar

Prakiraan

Prakiraan indeks kualitas udara (AQI) Kathmandu

HariTingkat polusiCuacaSuhuAngin
Minggu, Feb 28

Tidak sehat 163 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Senin, Mar 1

Tidak sehat 155 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Selasa, Mar 2

Tidak sehat 154 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Hari ini

Tidak sehat 159 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Ikon Cuaca73.4°46.4°
Angin berputar 198 derajat

2.2 mp/h

Kamis, Mar 4

Tidak sehat bagi kelompok sensitif 125 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Ikon Cuaca73.4°48.2°
Angin berputar 244 derajat

2.2 mp/h

Jumat, Mar 5

Tidak sehat bagi kelompok sensitif 115 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Ikon Cuaca75.2°50°
Angin berputar 251 derajat

2.2 mp/h

Sabtu, Mar 6

Tidak sehat bagi kelompok sensitif 121 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Ikon Cuaca77°51.8°
Angin berputar 217 derajat

2.2 mp/h

Minggu, Mar 7

Tidak sehat bagi kelompok sensitif 136 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Ikon Cuaca77°51.8°
Angin berputar 242 derajat

2.2 mp/h

Senin, Mar 8

Tidak sehat bagi kelompok sensitif 129 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Ikon Cuaca78.8°53.6°
Angin berputar 273 derajat

4.5 mp/h

Selasa, Mar 9

Tidak sehat bagi kelompok sensitif 141 AQI US

Wajah manusia yang mengindikasikan tingkat AQI
Ikon Cuaca80.6°55.4°
Angin berputar 269 derajat

6.7 mp/h

Tertarik dengan prakiraan per jam? Dapatkan aplikasinya

Historis

Grafik riwayat kualitas udara untuk Kathmandu

Bagaimana cara melindungi dari polusi udara?

Kurangi paparan polusi udara Anda di Kathmandu

ANALISIS DAN STATISTIK KUALITAS UDARA UNTUK Kathmandu

How bad is air pollution in Kathmandu?

Kathmandu is a city located in Nepal, home to many different ethnic groups with both Hinduism and Buddhism being the main religions. It is the cultural hub of Nepal, being of importance to the country’s arts and history, as well as being the main economic zone. Currently Kathmandu is undergoing rapid growth, being one of the fastest growing cities in south Asia. As with all rapid growth and development comes a spike in pollution levels, and to compound the situation, a disastrous 7.8 magnitude earthquake that took place in 2015, levelling many areas of the city that still lay in ruin years later, which besides disrupting daily life is another source of pollution in of itself, due to large amounts of dust and finely ground particles being blown into the air from these sites.

Kathmandu came in with a PM2.5 reading of 48 μg/m³ as a yearly average over 2019, placing it into the ‘unhealthy for sensitive groups’ category, which requires a PM2.5 reading of anywhere between 35.5 to 55.4 μg/m³. This shows that Kathmandu came in on the higher end of this scale, meaning that the city is subject to some fairly bad levels of pollution year-round, with some months coming in considerably higher, such as January with a reading of 102.7 μg/m³, an extremely high number that would have placed Kathmandu into the ‘unhealthy’ bracket (55.5 to 150.4 μg/m³) at that point in time. Thus, pollution levels in Kathmandu are of concern to its citizens and their health.

What are the main causes of pollution in Kathmandu?

There are several causes of elevated pollution levels in Kathmandu, with both human and geographical factors coming together to form these heightened numbers. For a start, Kathmandu is situated in a location that places it deep within a valley and many mountain ranges around. It is also surrounded on both sides by China and India, economic giants who in their own rights still have many pollution problems, with cities from both countries often coming in ranked very highly amongst all polluted cities worldwide.

In regards to what is actually causing the pollution in Nepal, the large assortment of vehicles, many of which are ancient and running on outdated motors and diesel fuels would be responsible for pouring out high concentrations of fumes and noxious pollutants. Other sources include open burning of organic material as well as refuse, as with a lack of proper infrastructure comes problems pertaining to garbage collection and disposal, and as such many people resort to setting fire to their waste. This would cause a lot of fumes that come from the combustion of materials such as wood and plastic, all of which have many negative consequences on human health.

So, to summarize, the main causes of pollution in Kathmandu are open burn fires, vehicular emissions, dust from construction sites and damaged areas left over from the earthquakes, all compounded by its geographical location, lacking the elevation and wind to allow these pollutants to disperse properly, instead accumulating and rising to dangerous levels.

What are the main types of pollutants found in Kathmandu?

With many open burn sources and different types of outdated vehicles operating around the city, a large amount of pollution would come from combustion sources. Among them would be fine particulate matter such as black carbon, which is formed from the incomplete combustion of fossil fuels as well as organic material such as wood or plants. With these outdated vehicles often relying on diesel fuels, they would be pouring out large amounts of black carbon in the form of soot, which can permeate the atmosphere in areas of high traffic as well as coating roadsides and underpasses with thick black accumulations, not only being visually unappealing but having a host of carcinogenic properties. Other pollutants arising from vehicles would include carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3) and sulfur dioxide (SO2).

When are the most polluted months in Kathmandu?

Observing the data gathered over 2019, the months that came in with the cleanest readings of PM2.5 occurred in the middle portion of the year. PM2.5 refers to particulate matter that is 2.5 micrometers or less in diameter, and due to its small size and subsequent dangers to human health, is used as a major component in calculating overall air quality.

The cleanest month of 2019 was august, which came in with a reading of 11.8 μg/m³, putting it into the ‘good’ rating bracket, which requires a number between 10 to 12 μg/m³ to be classed as such, making it a bracket with a very fine margin of entry, and of note is that the air during this time of the year would be significantly healthier to breathe than other times.

The months with the worst readings were January through to May, as well as November and December, making the beginning and end of the year the time that pollution levels are at their highest. These pollution levels reached an absolute peak in January, with a reading of 102.7 μg/m³, followed by December with a reading of 75.6 μg/m³. In total, six months out of the year came in with unhealthy air quality ratings.

Is air quality improving in Kathmandu?

With existing data taken from the previous years, it is uncertain as to whether pollution levels in Kathmandu are improving or just fluctuating between different numbers that have similar levels of pollution. In 2017, a PM2.5 reading of 45.9 μg/m³ was recorded. This was followed by a fairly large increase the next year in 2018 of 54.4 μg/m³, showing that pollution between 2017 and 2018 had gotten significantly worse.

Moving into 2019, it is apparent that there was visible improvement, with its PM2.5 reading of 48 μg/m³. However, when compared to 2017’s reading this still shows a decline in air quality. As such the pollution levels in the year of 2020 and beyond will show whether the air quality in Kathmandu is actually improving and not just moving up and down by a few units each year.

With a city that is undergoing such a marked increase in its economy and all the growth associated with it, there will be a large amount of environmental challenges ahead as many developing cities in Asia have been witness to, many of which are still going through them. With a reduction in the amount of diesel fuel vehicles as well as open burn sources being cracked down on, Kathmandu may be able to see some form of improvement in its air quality in the years to come.

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