Eksplain: Penyemprotan Air untuk Kurangi Polusi Udara Jakarta, Efektifkah?

Transcript

00:00 Recently, air pollution has become a concern, including President Jokowi Dodo.

00:08 The head of state even asked the Ministry of Weather to raise the rain in the Jabodetabek area

00:14 and implemented regulations to speed up the implementation of emission limits.

00:18 Jokowi also asked for more open green spaces, including considering implementing WFH or working from home.

00:27 Various efforts are being made by the government and related parties to address air pollution in Jakarta and its surroundings,

00:35 including by spraying water.

00:38 The Chairperson of the Association of Indonesian Lung Doctors, Prof. Chandra Yoga Aditama,

00:44 concluded a study that said spraying water on the road can prevent air pollution, one of which in China.

00:51 According to a study published in the journal Ilmiah Toxics in 2021,

00:57 spraying water on a large scale on the road does not prevent air pollution, but rather increases pollution

01:03 because it tends to increase the concentration of PM2.5 indicators in air pollution and humidity.

01:10 The Puji Lestari Institute of Bandung Technology does not agree with the government of the DKI Jakarta province

01:20 who sprays water using a water cannon to reduce air pollution in Jakarta.

01:25 Because the spraying of water on the road in Jakarta is estimated to only reduce pollution in a few minutes.

01:32 Puji said that air pollution is something without limits or no boundaries,

01:38 while the volume of water in the water cannon is limited.

01:41 Therefore, spraying using a water cannon will only reduce pollution for a few minutes.

01:47 He explained, "In science, the spraying of water is like a web scrubber.

01:53 This method will not be effective if the droplet particles used to spray are not known.

01:59 The reason is because the particles will only stick to certain droplet particles.

02:04 Soil can be cleaned even if it is only a rough particle.

02:09 Meanwhile, fine particles below 1 micron will not be brought down.

02:14 The government of Jakarta does not agree with the government of the DKI Jakarta province who sprays water using a water cannon.

02:19 Someone said that in the country, blah blah blah, the condition is different from our country.

02:35 In the country, the water is sprayed in the cold season, but in Bangkok, Thailand, and Brazil,

02:46 in the DKI Jakarta province, there is no such condition.

02:53 The academician of the University of Sri Sakti, Hernani Yuliawati, agrees with Puji that spraying water is ineffective.

03:01 According to her, the pollution in the air of Jakarta is PM2.5, which is like aerosol or sometimes a dense gas.

03:11 On the other hand, Hernani reminded about the El Nino phenomenon which has the potential to cause long-term drought in the capital.

03:18 For that, the DKI PMPROF must do water conservation from now on.

03:24 The building managers, especially the PM, the minister, and the BNM, must do water mist.

03:33 So, it is agreed that all high-rise buildings in DKI Jakarta will do it.

03:39 We will discuss the time, for example, how many times a day.

03:44 I will discuss this at 11.00 am with Mr. Amenko and all related ministries.

03:52 This is not just an activity that can be said to be a problem that has just been done.

04:00 Later on, the installation of water mist will be something that is not disassembled.

04:15 The installation of water mist will be done if the air quality in Jakarta is not good.