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結果 : when was lead discovered to be harmful
4:24

Why lead poisoning is a danger to your child's health | UNICEF

UNICEF
131,578 回視聴 - 3 年前
4:19

Why is Lead Bad For Humans?

Today I Found Out
250,735 回視聴 - 5 年前
1:48

Tampons may contain "toxic levels" of lead and arsenic in them, study warns

Global News
14,980 回視聴 - 2 か月前
5:09

Were You Exposed to Toxic Lead Levels as a Kid? The Science Says "Most Likely".

F. Perry Wilson, MD
382 回視聴 - 2 年前
3:16

Why Lead Poisoning is so Dangerous

CuriosityList
13,450 回視聴 - 8 年前
3:19

Consumer Reports: Toxic lead found in cinnamon brands

Click On Detroit | Local 4 | WDIV
25,712 回視聴 - 4 日前

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6:04

Family shocked after toddler suffers dangerous lead poisoning from their apartment

CBS Chicago
7,698 回視聴 - 1 年前
0:33

Health effects of lead (toxicity and biological functions) #lead #toxic #heavymetals #leadtoxicity

About Health and Science in Simple Words
67 回視聴 - 1 年前
8:38

Bollywood Actor Aditya Pancholi Biography_कहानी Bollywood के Bad Boy की_filmi duniya

Filmi Duniya
631 回視聴 - 1 日前

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0:44

Study: Half of US adults exposed to harmful lead levels as kids

News 12
70 回視聴 - 2 年前
2:19

Dangerous lead exposure at home

News4JAX The Local Station
63 回視聴 - 5 年前
2:54

Consumer Reports find toxic levels of lead in cinnamon products

News4JAX The Local Station
1,527 回視聴 - 2 日前
3:14

Do dangerous levels of lead permeate your home?

syracuse.com
5,120 回視聴 - 5 年前
1:49

Lead Poisoning Dangerous For Children

KCAU-TV Sioux City
70 回視聴 - 4 年前
4:01

Toxic levels of lead found in accessories at 2 retail chains

KTVU FOX 2 San Francisco
461,815 回視聴 - 6 か月前
5:02

Lead, MSG, Harmful Ingredients Found In Maggi

Headlines Today
8,332 回視聴 - 9 年前
0:59

Researchers say the alcohol in mouthwash could lead to harmful bacteria in your mouth #itvnews

ITV News
5,694 回視聴 - 3 か月前
1:05:51

Lead: A Toxic Legacy - Dr Ian Mudway

Gresham College
5,405 回視聴 - 4 か月前
1:06

Harmful Effects of Lead in Water

Goody Water
71 回視聴 - 7 年前
2:33

Harmful Lead Found In Tampons. Should You Stop Using Them?

India Today
629 回視聴 - 2 か月前