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[Land] Biological concentration

by Eco Generation | 02-06-2011 09:51 Comments 34 Comments recommendations 0 recommendations

biological concentration

Pesticide use shrinks bird population and kills birds by making the eggshell too thin and fragile. Furthermore spiders also die from eating preys contaminated with pesticides.

1. what is biological concentration?
Pesticides or heavy metals, through intake, do not get digested or removed but build up in our body. Biological concentration refers to the trend the higher the status in food pyramid, the higher the concentration of pesticides in the system. Since human is an omnivorous animal that can eat every animal on food chain, it has very high exposure to the risks posed by pesticide.

2. what causes biological concentration?
It results from water or soil seeped with the heavy metals or non-biodegradable pesticides residue in sewage, leachate, pesticides sprayed on crops, contaminated water from abandoned mine, industrial waste, and all sorts of wastes. Since synthetic chemical compounds like PCB, DDT and BHC are especially non-biodegradable, they accumulate in the food we eat posing great health threat.

3. health threat by pollutants
mercury:osteomalacia, acute pain in entire body | DDT:mainly contained in animal fatty tissue, it destroys fatty tissue and disrupts calcium absorption | lead:anemia, defective vision, nausea, diarrhea, dysuria | ABS:non water-soluble so it for ms a layer making aquatic creatures ifficult to breath | chrome:anemia, mental disorder | zinc:skin trouble, hair loss, nausea | cadmium:nephrolith, lung cancer | PCB:nausea, weight loss, yellow fever, abdominal pain.

information to know | what is minamata desease?
In 1953, some residents of Minamata prefecture in Japan succumbed to serious bout of illness. They had difficulty in walking and experienced paralysis of hand and feet, and weakening of language skills and vision. What was causing these ailments? It turned out what made them seriously ill was seafood poisoned with mercury. And this mercury was contained in the wastewater generated from nitrogen fertilizer plant in Minamata prefecture.

what is itai itai disease?
Cadmium produced from wastewater of lead and zinc refining process is introduced and reside in water, fish, agricultural produce we daily consume. Those who had eaten these contaminated food experienced difficulties in walking and atrophy of bones, and it has identified in 1968 that cadmium is the culprit of these terrifying symptoms.

4. how to minimize harm from pollutants?
¿Refrain from using biological concentration inducing product
¿Develop biodegradable pesticide
¿Strictly separate garbage

written by Jeonghee Sohn
animated by Amanta


  • ERIC SARBAH says :
    Very thoughtful
    Posted 18-11-2014 09:08

  • Gorana Pogancev says :
    Biological concentration is very important in all creatures - from tiny plancton to domesticated animals. Pesticide components are in all of them and end up in food chains.
    Posted 18-11-2014 04:43

  • Anne Tachado says :
    I remembered my biology exam because of this :)
    Posted 14-11-2014 14:46

  • Pankaj Joshi says :
    thanks for sharing
    Posted 31-12-2013 19:51

  • Dina Sapkota says :
    thanks for sharing
    Posted 27-12-2013 22:51

  • Bidur Kunwar says :
    informative one
    Posted 27-12-2013 02:17

  • Deny Shrestha says :
    thanks for the information
    Posted 22-12-2013 20:55

  • Mamta Kunwar says :
    thanks for information
    Posted 15-12-2013 01:07

  • Rongel Marcil says :
    This is really bad because these things build up in our bodies and they are not removed or digested. They will have a large negative impact on us.
    Posted 05-12-2013 16:41

  • Harris Ajith says :
    Gud information.i have never known anything about it
    Posted 16-11-2013 00:27

  • joseph xavier says :
    thanks for the information

    Posted 07-11-2013 20:02

  • pratik kunwar says :
    healthy information... thanks for sharing
    Posted 22-07-2013 13:21

  • sneha limbu says :
    Thanks for sharing the info
    Posted 20-07-2013 02:39

  • manoj rai says :
    that's great information, thank you for sharing!
    Posted 18-07-2013 00:50

Aaditya Singh

  • Aaditya Singh says :
    It is sad to see how these chemicals are affecting all living beings including us.
    Posted 24-06-2013 17:14

  • Raunak Kapur says :
    Promote Organic products. Here in UAE they are subsidized.
    Posted 17-06-2013 01:54

Rohan Kapur

  • Rohan Kapur says :
    In the long run, only such initiatives will work. Our survival depends on them.
    Posted 17-06-2013 00:57

  • Christy Lee says :
    Thank you for the information, EJin. It's very useful :)
    Posted 11-03-2013 15:50

  • EJin Kim says :
    There are many biodegradable ingredients we could use such as orange, lemon, mint, cigarette, pine oil...These materials are known to have chemical properties that repel insects

    Posted 22-02-2013 14:53

  • Nasty Lauri says :
    That's very horrible.
    From this article, my question is what kinds of biodegradable pesticide which we can develop?
    Posted 29-10-2011 01:50

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