Why DDT, banned 50 years ago, was found in the body of a porpoise

(1)narration by Seo Yeon-ju
(2)My bangs are round

(1)narration by Seo Yeon-ju
(2)Water 10 These Polaris Villages

(1)narration by Seo Yeon-ju
(2)He always smiles
(3)Also called the smile angel

(1)Dolphins native to Korea
(2)Environmental Special
(3)Among the mermaids living in the Southwest Sea
(4)have a good view of Sanggwang’s
(5)Jeong Yak-jeon Jajae-eobo (Jae-eobo”
(6)The pickax appeared in the Joseon Dynasty’s
(7)It was common in the ocean
(8)the largest habitat for porpoises
(9)Living on the west and south coasts
(10)Pickaxes are about 2 or 3 times a minute
(11)He comes up to the surface and breathes, but with the recent increase in fishing activities
(12)in a net thrown to catch another fish
(13)The pickaxes were caught and trapped together
(14)Or die because you can’t breathe
(15)Due to environmental pollution, the population has decreased
(16)Domestic porpoise population
(17)Source: Ministry of Oceans and Fisheries
(18)About 36000
(19)53 Decreased
(20)About 17000
(21)endangered species
(22)It’s classified as an endangered species
(23)Source International Journal of Hazardous Materials
(24)a regional genus of symbols of Korea’s coastal waters
(25)The accumulation and temporal trend of persistent organic pollutants POPs
(26)Then, a 2020 paper will be published
(27)After 12 years of follow-up on the porpoise
(28)Source International Journal of Hazardous Materials
(29)31 out of 116 porpoises in this study were BOT level
(30)Lipid DDT concentration was detected excess mass mortality
(31)The porpoise is a toxic substance in the body
(32)DDT was detected
(33)Naver News Library
(34)I can sense that 1 is flocking
(35)July 2nd Chosun Ilbo, July 5th
(36)That’s
(37)BHC from this summer
(38)That’s what I’m talking about
(39)Site 87 Disposition of dismissal Sangchunjae 11 If the previous independence, the Star Naoki Wiki has been used up
(40)The use of automatic lights is extremely restricted It’s a small part of possession
(41)決 Take charge of it and intercept
(42)But this DDT… In the 1970s
(43)June 972
(44)I wonder what happened
(45)a poisonous insecticide
(46)Swiss chemist
(47)Paul Hermann Mueller
(48)In 1939, a Swiss chemist named Paul Hermann Müller
(49)We found that DDT has an insecticidal effect

(1)Back then, conventional pesticides were fed to insects
(2)It took some time for the insecticide to work
(3)DDT region
(4)DDT combines well with fat
(5)When it touches the insect’s body, it’s absorbed into the surface fat layer, causing it to die quickly
(6)DDT eliminates insects
(7)It’s known to be safe for humans
(8)DDT-mixed pesticides have been on sale since 1942
(9)Especially during World War II
(10)He’s been carrying an epidemic among the soldiers
(11)Eliminate pests, malaria and mosquitoes
(12)It also eradicates typhus
(13)In 1948, Mueller discovered the effects of DDT
(14)출처 nobelprizeorg
(15)He won the Nobel Prize in Physiology or Medicine
(16)In Korea, after liberation in 1945
(17)The U.S. military brought in DDT
(18)At that time, the U.S. military was able to protect Koreans
(19)I sprayed DDT myself
(20)The smoke from the disinfection truck was also DDT
(21)Rachel Louise Carson
(22)But it was written by American marine biologist Rachel Carson in 1962

(1)Spring of Silence
(2)The accumulation of DDT begins with a very small amount and continues until a significant level is reached, because the fat stored in the body acts as a biological amplifier
(3)Even a very small amount can cause great changes in the human body
(4)Rachel Carson, The Silent Spring
(5)After 20 years of use, DDT reveals its dangers
(6)When DDT is absorbed by animals
(7)It accumulates in the fatty thyroid gland and kidneys
(8)It could lead to damage to the nervous system or cancer
(9)1972 U.S. Environmental Protection Agency banned the use of EPA DDT
(10)We’ve completely banned the use of DDT
(11)DDT, who was kicked out 50 years ago
(12)So far, the only thing found in the body of a porpoise is
(13)substances that cannot be decomposed by natural forces alone
(14)Professor Moon Hyo-bang, Department of Marine Convergence Engineering, Hanyang University
(15)Organic chlorine pesticides including DDT
(16)Residual organic pollutants. These are what we call them
(17)The natural environment that we know of is that when a very bad substance comes in
(18)It’s a process that changes the original form of matter
(19)Chemical decomposition process Biological decomposition process
(20)microbial degradation
(21)But substances like DDT rarely break down in the environment
(22)an ecosystem food chain
(23)The bigger problem is that these DDTs move through the food chain
(24)on the bodies of animals
(25)increasing concentration of accumulation
(26)The Korean Society of Integrated Biology’s Life Saving Course
(27)DDT content of water
(28)For example, a substance called DDT
(29)Professor Moon Hyo-bang, Department of Sunwa Western Engineering, Hanyang University
(30)If the concentration coming in from the river is 1, the number

(1)Bioconcentration Process of Integrated Biology in Korea
(2)About 13,000ppm. About 1ppm
(3)DDT content of water
(4)If DDT in water is converted to 1
(5)The concentration that goes into phytoplankton or zooplankton is
(6)Bioconcentration Process of Korean Integrated Biology
(7)of small animal plankton
(8)DDT content approximately 13000 ppm
(9)About 1 ppm
(10)Professor Moon Hyo-bang, Department of Marine Convergence Engineering, Hanyang University
(11)It’s amplified
(12)DDT content in large fish
(13)Approximately 650000 ppm
(14)DDT content in small fish small animal plankton about 162500 ppm
(15)If DDT in water is converted to 1
(16)When you go back to the fish, the big fish, and the dolphin
(17)DDT content of fish-eating bird pelicans is about 8125,000 pr
(18)Approximately 650000ppn
(19)DDT content in small fish approximately 162500ppr
(20)If DDT in the room is converted to 1
(21)Professor Moon Ho-bang, Department of Marine Convergence Engineering, Hanyang University
(22)The concentration is getting bigger
(23)DDT content of fish-eating bird Eligans
(24)biological amplification
(25)DDT is concentrated in fat
(26)The more fat an animal has
(27)there’s more left in the body
(28)Environmental Special
(29)And not directly exposed to DDT
(30)DDT was also detected in the porpoise
(31)Because we dissected marine mammals
(32)I found a lot of pregnant individuals
(33)From the mother’s body to the baby’s body
(34)Professor Moon Hyo-Bam, Department of Marine Convergence Engineering, Hanyang University
(35)And on the umbilical cord and placenta that connects the mother and the baby
(36)DDT was detected at a fairly high concentration
(37)Professor Moon Hyo-bang, Department of Marine Convergence Engineering, Chansung University
(38)This means that this material will be transferred to the next generation

(1)Environmental Special
(2)The life span of a porpoise is between 20 and 25 years
(3)DDT is continuously transmitted through the umbilical cord and placenta
(4)50 years later
(5)DDT is detected in the next generation of porpoises
(6)DDT has been used for over 20 years
(7)It’s already enriched in humans as well as in porpoises
(8)It wasn’t until a long time after DDT was used
(9)DDT Toxic Pesticides Possible to cause cancer, paralysis, and cramps
(10)cancer-causing
(11)And the results!
(12)Professor Moon Hyo-bang, Department of Marine Convergence Engineering, Hanyang University
(13)If we learn from the past
(14)In the past, a substance called DDT gave a good effect
(15)With the scientific information we had at the time
(16)It was judged and used
(17)I don’t know what’s going to happen after the use of chemicals
(18)That’s what we’re predicting based on current knowledge
(19)The presence of DDT in marine life seems to be a scientific problem
(20)For the average person, this is not a scientific issue
(21)It’s a social issue
(22)When chemicals are used, these things are not a problem
(23)We need to constantly observe and see

(1)One-in-one e3 2023-09-07 105618 20170
(2)I think I’ve seen that car until the 2000s. It’s toxic
(3)Movement of Prohibition 2 in 1973 because it was a substance
(4)LD Difficulty true worm 2023-09-07 110645 1240
(5)Maybe the disinfection truck itself is still in use, and it’s a pesticide
(6)I think it means that only my ingredients have changed
(7)Large Musk Scent 2023-09-071955201
(8)Can radioactivity accumulate in a similar structure? Six movements
(9)Tritium with a long half-life also has the same chemical properties as ordinary hydrogen, so there is little bioconcentration
(10)Let’s laugh
(11)These days, there are many cases where fish and catching fish are used incorrectly, but if you are not sure about it, it would be better not to write in Chinese characters모양 Even though the shape looks similar, it means a completely different Chinese character. 1 move is too annoying