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Keshav
Keshav

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3 🎴JAPAN Disease Every Developer Should Know🎎

Minamata Disease

  • Japan city minamata, kumamoto prefecture 1956 - first case

  • Acetylene - Acetaldehyde using Mecury-catalyzer

  • By-prouduct - Methylmercury MeHg

  • Chisso Co. Ltd. (1932-1950s-1968) - $86 million compensation (by 2004)

  • central nervous system is damaged

    • ataxia (difficulty coordinating movement of hands and feet)
    • concentric constriction of the visual field (narrowing of the field of vision)
    • hearing impairment
  • Flowchart

    industrial wastewater ↓ Fish shellfish ↓ minamata Bay & shiranui sea - local population

Human - 2,265 victims (March 2001)
Cats - dancing cat fever 🐈


Blackfoot Disease

  • peripheral vascular disease - arsenic containing artesian well water (natural contaminant in groundwater)
  • taiwan - east asia - republic of china

Arsenic - As (silver grey)- Z=33, M=74.9

  • alloying agent, glass making, textile, paper

Itai-itai - 1968

  • Cadmium polluted Jinzu River basin in Toyama Prefecture
  • Severe pain in spine and joints
  • cadmium poisoning = softening of bones / kidney failure (mitochondria of kidney cell damaged)
  • reason :
    • silver mining, lead, copper & zinc byproduct cadmium
    • Mitsui mining & smelting Co. Ltd company realsed into rivers

Cadmium Cd (soft bluish white)- Z=48, M=112.4

  • used for batteries, metal coatings
  • most toxic - cancer causing at work (not enterns thru skin)
  • accumulates throughout life

Hope it helps :)

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