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Interview 3

 

Interview with Dr Chris Huang

 

Samuel

:

We started our research because we were intrigued by what happened last year during the October period. What we wish to find out from you is more or less the health impacts. Through our research, the survey we conducted and the interviews we conducted, we gained much knowledge about haze. In our survey, we found out that some people mentioned that during the haze period, they complained of stomach flu. What we would like to ask you is if it is possible that haze causes the stomach flu.

Doctor H

:

The answer is no.

Ji Heng

:

Can you elaborate?

Doctor H

:

Stomach flu is a very general term, when someone comes to me and say that they have stomach flu, there can be two things, one is food poisoning that is causing the indigestion, pain, vomiting, diarrhea. And this can be caused wither by food poisoning or a virus. Some viruses, I can¡¯t really remember exactly which ones, echo viruses, that cause an infection in intestines and they have the same symptoms as food poisoning is mainly pain, indigestion, vomiting, and diarrhea, so normally with a virus infection, there tend to be fever. Food poisoning, usually no. But sometimes, it can cause a fever too.

Samuel

:

For all other health problems, like asthma, cough, flu, wheezing, are they all affected by the haze?

Doctor H

:

Yes, yes. So I think haze in general tends to affect more of the respiratory system, means the lungs, the nose, eyes is not the respiratory system but it is exposed to the haze, thus resulting in eye irritation. Nose irritation, throat irritation, lung irritation, and skin.

Samuel

:

Allergy? Eczema? How about the heart? Like the heart chronic disease?

Doctor H

:

Basically haze doesn¡¯t cause any problems to the heart. But what happens is if the person. Usually a person with heart disease tends to have other illnesses such as asthma. They may be smokers so they have some sort of lung impairment. So when their lungs are stressed out by breathing difficulties from haze, then it can affect the heart and put a strain on the heart. And cause heart failure for example.

Samuel

:

Then we would like to ask you about your personal experiences as a doctor. So during the last year¡¯s haze period or maybe the previous years for the haze periods, did you receive an increase in patients?

Doctor H

:

Not a lot. I think it depends on where you practice. My area here, I mainly see more office workers. And sort of families, we call it family practices. So I didn¡¯t see a huge increase. I think the ones that see the huge increase are the doctors that work more in the hometown like HDB and clinics so on. More people who are sick, they will go down and see a doctor there straightaway. They are not going to come all the way to work to see the company doctor and then go back home. So I think those people tended to see an increase in the incidents of haze related illnesses. I didn¡¯t see that many. But I did see some with a bit of coughing problems and nose problems, we call it allergic ____________. A little bit of asthma, skin problems, not really.

Samuel

:

Then on the occasions that you treated patients, what was the most common illness?

Doctor H

:

Breathing problems like asthma. Difficulty in breathing.

Ji Heng

:

Now you see, this haze is actually, during our research, we done lots of research, and it was mentioned that this PM10, it actually affected the growth of children¡¯s¡­( interrupted)

Doctor H

:

What is PM10?

Us

:

Particulate Matter.

Ji Heng

:

Can you explain to us how does this actually happen?

Doctor

:

Oh, actually I don¡¯t see how it will affect the growth of lungs in children unless it is over a very chronic exposure.

Samuel

:

It is actually the growth of lungs.

Doctor

:

Oh, actually, I don¡¯t see how it will affect the growth of lungs in children. Maybe in babies. In the sense that they are not completely developed yet, so when they get exposed to particulate matter our or irritation, that may cause scarring of the lungs. It may cause irritation that leads on to infection like pneumonia. And pneumonia can cause damage to the lungs so it won¡¯t stunt the growth of the lungs but it may cause permanent damage to the lungs. If these babies get infection.

Samuel

:

What do you mean scarring of the lungs?

Doctor

:

For example, when you cut your skin, there is a wound there, the wound heals up and there is a scar there. We call it keloid tissue. That keloid tissue is not almost skin. It is hard. Same for lungs, when lungs are infected, it is actually an injury. So when the lungs get damaged, it does not repair itself. So that area of lungs doesn¡¯t work anymore. SO to say. Its not that bad. When you look at the PSI Index. There are a number of ranges. Below 50 is quite sage. 50-100 is not so safe. Over 100, it can cause damage and so on.

Samuel

:

What precautionary measures would you suggest that the people during the haze period? Then, specifically what measures for those with different illnesses like eye irritation or heart chronic.

Doctor H

:

It is very hard to protect yourself from the haze because it is all over the place. The only sure way of protection is to stay home. Close the windows and get a very special filter called HEPA filter. That filters off particles from the air. Otherwise, there is no other way we can completely protect ourselves from the haze. The precautions you can take¡­ For example, you have very bad allergic problems, eye problems, sinus problems or asthma, try to work indoors. For people who are more prone to asthma attacks, there are medicines you can use. They are called inhalers. They prevent asthma attacks. Some patients if they do not have any complications or any secondary illnesses like asthma and so on. Theoretically, they shouldn¡¯t be affected. I think the main thing is to try to avoid exposure whatever means you can. Staying at home or in the office. Using a mask will help to some degree.

Ji Heng

:

I would like to ask a question, it¡¯s not listed here (questions paper). When people come to you and you see most working people. Do they have any infections during the haze period? Do you actually give them advice what they should they take or what should they buy.

Doctor H

:

I think the advice is basically quite general. Again, I said avoid the haze if you can. And then are medicines they can use to help reduce irritations or sinus irritation or asthma.

Ji Heng

:

Just now you said wearing a mask. Wearing a mask, many people would find it uncommon, so when you walk on the streets with a mask, everyone would be looking at you. Do you think there are any alternatives to this? What other things can they do other than wearing a mask when outside?

Doctor H

:

There isn¡¯t much they can do. Being outside with the haze around you. There isn¡¯t much you can do to not inhale the dust.?

Samuel

:

When one wears a mask, if I am not mistaken, our research mentioned that if worn for more than a few hours, there will be breeding of bacteria. How many hours would you recommend them to wear before changing the mask.

Doctor H

:

Not really a few hours. Actually within a few minutes. Once the mask becomes wet. Usually within 15 minutes. The efficiency of filtering bacteria reduces. Once you breathe and condense the mask, it becomes ineffective.

Samuel

:

During the haze period, the government would more or less advice children, the elderly and people with respiratory and heart problems to stay home. Why is this so? Why does the government not advise working adults?

Doctor H

:

I think what they are trying to say is to advise people who are more prone to getting complications to stay at home. So it is the very young, the babies. The very old who may have some other health complications.

Samuel

:

Just now, you mentioned HEPa Filter, what does it stand for?

Doctor H

:

I think it stands for High Efficient Particulate Filter. And during that period, you would notice that places like Best Denki selling many brands of air filters. They are basically taking advantage of the situation to earn money. Air purifiers basically work only in enclosed areas. Like for example a room with closed doors. This is because nothing comes in or out (bacteria or particles) of the room.

Samuel

:

Other than the circulatory and respiratory system, what other systems are affected?

Doctor H

:

Any system that is exposed to the air. And like I said, haze contains chemicals, which may damage lining of lungs and lining of blood vessels. If it damages the lungs, it will also damage the immune system.

 

 


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Conclusion:

From this interview, we understand that there would be many health implications caused by the haze such as skin problems, respiratory problems, eye problems and possibly other human systems that are exposed to the haze particles. Particulate matter may indirectly cause permanent damage to undeveloped lungs. HEPa filters (air purifier) and masks can be used to filter out the pollutants at indoors and outdoors respectively, but the effectiveness of the masks will be reduced after a while when the moisture from breathing wets the mask.

Doctor Huang also gave us some precautionary measures such as avoiding maximum exposure to the haze and stay indoors. Elderly and children are more advised to stay at home because they are more prone to health complications. During the haze period, Doctor Huang saw an increase of patients with respiratory problems.


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