初級 5520 タグ追加 保存
動画の字幕をクリックしてすぐ単語の意味を調べられます!
単語帳読み込み中…
字幕の修正報告
You've probably heard plants can improve your air quality.
Just about every paper on the subject, and I mean literally all of them, are based on a 1989 NASA study and a follow up by the lead scientist.
The scientists collected plants and put them in chambers, then pumped in harmful chemicals like these.
(Ammonia, Trichloroethylene, Formaldehyde, Xylene, Benzene)
After 24 hours, they tested the air quality in each chamber.
Some plants were able to remove up to 90% of the harmful chemicals.
So which plants were the most effective?
NASA scientists tested familiar ones.
All the plants they have in their list are just very common house plants.
This is Dr. Dennis Stevenson, Vice President for science at the New York Botanical Garden.
I think they picked them because they were looking at things that people would have in their environments.
As opposed to some exotic, weird tropical plant that nobody knows anything about.
All of these plants are excellent at getting rid of harmful indoor carcinogens.
(Boston fern, gerbera daisy, peace lily, snake plant, Chinese evergreen)
(Carcinogen: an agent that can cause cancer in humans.)
Here's how it works:
Plants take in the harmful gasses out of the atmosphere and sequester them in their roots and cells.
Some of these chemicals are broken down by fungi in the soil and others are stored in the plant.
So what about things like...smoke, that might be in your apartment via cigarettes.
Or you know...other types of smoke.
Well I would say, they take up stuff in the atmosphere so theoretically they should take up any kind of smoke that's in your apartment in a certain sense, right.
I don't really know.
But I think if one did those tests that probably one would find a positive correlation with that.
(Positive correlation between plants and removing smoke.)
Of all of the plants NASA mentioned in its study, these three have the best surface area to chemical removal ratio.
(gerbera daisy, English Ivy, snake plant)
But keep in mind that a gerbera daisy will never get as big as a lady palm.
And the more plant you have, the more harmful chemicals that you can remove.
A big leaf plant is probably, potentially able to exchange more things with the air you know than something with little needle leaves.
And for those lacking a green thumb?
I'll tell you, the one in there that's probably the hardest to kill is the sansevieria, the mother in law's tongue.
It scores high on removing chemicals and only needs low light.
Hello everyone, if you'd like to learn more about the plants or the experiments done by NASA, check out the description below.
You'll find a more detailed account of which plants are mentioned at the beginning of the video.
If you're looking to buy some of these plants or want to learn how to take care of them, don't forget to check out your local nursery.
コツ:単語をクリックしてすぐ意味を調べられます!

読み込み中…

読み込み中…

部屋におくだけ植物の空気清浄!NASAの研究とは? (A NASA study explains how to purify air with house plants)

5520 タグ追加 保存
Vvn Chen 2019 年 7 月 17 日 に公開    Sophie 翻訳    Yukiko チェック
お勧め動画

コメント

読み込み中…
  1. 1. クリック一つで単語を検索

    右側のスプリクトの単語をクリックするだけで即座に意味が検索できます。

  2. 2. リピート機能

    クリックするだけで同じフレーズを何回もリピート可能!

  3. 3. ショートカット

    キーボードショートカットを使うことによって勉強の効率を上げることが出来ます。

  4. 4. 字幕の表示/非表示

    日・英のボタンをクリックすることで自由に字幕のオンオフを切り替えられます。

  5. 5. 動画をブログ等でシェア

    コードを貼り付けてVoiceTubeの動画再生プレーヤーをブログ等でシェアすることが出来ます!

  6. 6. 全画面再生

    左側の矢印をクリックすることで全画面で再生できるようになります。

  1. クイズ付き動画

    リスニングクイズに挑戦!

  1. クリックしてメモを表示

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔