TED Talk



Sources (not images):


What is particulate matter?

Understanding PM2.5


6 thoughts on “TED Talk

  1. Très bien! Your TED talk was well researched and gave insight into the dangers of PM. In Canada, with our low population and gigantic land mass, we don’t really have high PM with the exception of wildfires, but in places like Korea, Japan, and China, it’s very much a reality, as pointed out in your TED talk. Additionally, I like how you compared the advantages and disadvantages of different solutions, showing that there really wasn’t a simple solution to the issue. What really differentiated your TED talk from the other ones I watched was your anecdotal introduction. Asking a question is short and can be very effective, but from my research, I found that many professional TED talks used an anecdotal introduction. It’s always interesting to listen to someone’s story, and your anecdotal was no exception. It gave insight into what life was like in countries with high concentrations of PM 2.5 and was connected to your TED talk in a smooth and fluid way.

    Tone, pace, and pauses were good. There were a few spots where your tone seemed to question what you were saying, and I’m not sure if you did this one purpose or not, but other than that, there aren’t any other wishes.

    From your TED talk, I wonder if geographical features can limit the concentration and spread of PM 2.5. I know that in Gangwon Do in South Korea, the PM levels tend to be quite low compared to the rest of the country, and it is a mountainous region. Could geographical features, such as mountains, limit the concentration of PM levels? Also, from what I know, PM 2.5 is still heavier than air, although it does stay in the air longer. Would that result in there being higher concentrations in lower sections of air, and how would this affect children, whose body stature is much shorter?

    • Thanks for such a kind comment!

      Regarding your question about the geographical impacts, the particulate matter is easily blown around by the wind. And I’m not an expert on how mountains and valleys can effect wind behaviour, but I am confident in saying that geographical influences can effect where the pm can float to. For instance, if a valley is blocked off by geographical features which causes less air to be blown into that direction, then I would assume that there would be a lower concentration of pm in that area. Additionally, this could work the other way around. I read in an article while doing research that pm in China was being pushed into Korea and Japan via wind through the open spaces of the ocean (which would introduce little resistance to the pm).
      And for your second question, I don’t believe that the difference of height between a child and an adult make much of a difference, if any at all. However, I did mention in the video that children and elderly were more prone to complications with pm. If that’s what you’re wondering: This is because those individuals have weaker bodies and immune systems (this is however an average, a healthy child could be more resilient than a unhealthy adult).

      Thanks for the comment,

  2. Awesome RED Rock, Yoonha! You had a great hook that made me very interested in your presentation from the beginning. I also liked how you left links in your blog post. This was a nice way to offer more information, while sticking to the time limit. Your topic very closely relates to the climate change and sustainability lessons we had in science. Particulate matter 2.5 is another effect that fossil fuels have on the environment and human life. Your presentation led me to wonder, how does particulate matter impact the amount of people per country with lung or heart conditions? It would be interesting to see which countries have the highest rate of lung and heart problems, and how particulate matter affects those rates. Your presentation was very engaging, but to make it even more engaging I would add more images in front of the background video.
    Great job!

  3. The intro to your TED talk actually sounds like a real TED talk. You came in with a nice introduction, starting with a hook to catch our attentions, and relating it extremely well to your topic. To me, this is a very interesting TED talk, relating to areas like Japan, Korea, China, etc. You explained your topic in a simple way, and I can now walk away telling people that I know what particulate matter does and how it effects us. When going through the disadvantages, advantages, effects, and diseases it can cause, I learned a lot about the importance and how lucky we are to live in somewhere like BC. Speaking of BC, nice transition! That was a smooth change, relating your topic to where we live, and how we also need to regulate ourselves, protecting us and the entire world.

    The only thing I’d like to mention was the beginning’s introduction, and how it was a little wonky at times. The pace of the intro was sometimes fast, sometimes slow, so I’d just suggest to go through a couple times and make sure you have it right.

    Do you think at any point in time BC or Canada in general will face this issue? If so when?

    Good job!

    • Thanks for such kind words, sir.

      Regarding your question, I believe that BC/Canada is already starting, or even started, to face this problem. I had a conversation with my piano teacher (kind of random), and from her experience, she remembers BC to have had a fresher air than what we have currently. Now that may sound ridiculous, considering how fresh the air is compared to other countries, but you have to remember, being the best doesn’t mean consistently being as good as you were in the past. We must also take into consideration that although Canada doesn’t have much pm production (because of the population density), we still share the same atmosphere as other countries. Now to answer your question, Canada’s air is very, very good. But we aren’t on a different planet. Soon, we will start to see the effects of pollution from other countries (or our own) seep into the air and other things.

      Pollution is dangerous,
      (keep safe)

  4. Hey Yoonha!
    I must admit, that RED ROCK really ROCKED my view on smog and the effects it has on humans (*ba-dum tish*)! It was a super informative talk that helped explain the serious drawbacks smog has on human health, and why we should start to solve the problem asap. Another thing I found interesting is how smog masks, although they block some particles from entering your system, help fuel the problem as well. One wish I have is I wish you covered some of the other causes of these particles, so we can have a clearer understanding of what we need to do to help stop the spreading of particulate matter and the health drawbacks caused by it.

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