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词条 Yokkaichi asthma
释义

  1. Cause

  2. Symptoms

  3. Legal action

  4. References

  5. External links

{{nihongo|Yokkaichi asthma|四日市ぜんそく|Yokkaichi zensoku}}, one of the Four Big Pollution Diseases of Japan, occurred in the city of Yokkaichi in Mie Prefecture, Japan, between 1960 and 1972. The burning of petroleum and crude oil released large quantities of sulfur oxide that caused severe smog, resulting in severe cases of chronic obstructive pulmonary disease, chronic bronchitis, pulmonary emphysema, and bronchial asthma among the local inhabitants. The generally accepted sources of the sulfur oxide pollution were petrochemical processing facilities and refineries that were built in the area between 1957 and 1973.[1]

Cause

In 1955, the Ministry of International Trade and Industry began its policy to transition Japan's primary fossil fuel source from coal to petroleum. To accomplish that goal, construction of the Daichi Petrochemical Complex was begun in 1956. The complex contained an oil refinery, a petrochemical plant, and a power station. This was the first petrochemical complex constructed in Japan.[2]

In 1960, the government of Prime Minister Hayato Ikeda accelerated the growth of petrochemical production as part of its goal to double individual incomes of Japanese citizens over a 10-year period.[2] Also in 1960, MITI announced that a second complex was to be constructed on reclaimed land in northern Yokkaichi. The second complex went online in 1963. As demand for ethylene and other petrochemicals rose, a third complex was constructed which began production in 1972.[2] Yokkaichi transferred its energy production from coal to oil more quickly than the rest of the nation. The oil used in Yokkaichi was primarily imported from the Middle East, which contained 2% sulfur in sulfur containing compounds, resulting in a white-colored smog developing over the city.[3]

Symptoms

Beginning shortly after the opening of the first complex in 1956, severe cases of chronic obstructive pulmonary disease, chronic bronchitis, pulmonary emphysema, and bronchial asthma rose quickly among the local inhabitants.[1] Taller smokestacks were implemented, but these simply spread the pollution over a wider area and did not help alleviate the reported health issues.[1]

Fish caught in Ise Bay developed a bad taste, causing local fishermen to petition the government for compensation for their unsaleable fish in 1960.[1][2]

Legal action

A class action court case was brought against Showa Yokkaichi Oil and initially adjudicated in September 1970. The class was ruled to contain 544 individuals, but that number has increased over the ensuing years.[2][4]

A 2008 study by researchers from the Mie University Graduate School of Medicine and the Hiroshima University Natural Science Center for Basic Research and Development indicated a 10 to 20-fold higher mortality rates as a result of COPD and asthma in the affected populations of Yokkaichi versus the general population of Mie Prefecture.[5]

Initial attempts to alleviate the problem by raising the height of smokestacks to disperse the pollutants over a larger area proved ineffective. Eventually flue-gas desulfurization was implemented on a large scale, leading to an improvement in the health of local populace.

Yokkaichi asthma has been identified in rapidly industrializing areas in the rest of the world, including Mexico City and mainland China.[6][7]

References

1. ^1 2 3 {{cite web|url=http://www.bookrags.com/research/yokkaichi-asthma-enve-02/ | title=Yokkaichi Asthma|publisher=Environmental Encyclopedia |accessdate=15 July 2009}}
2. ^1 2 3 4 {{cite web|url=http://203.179.38.26/english/scholarship/previous_seminar/2004_sp/pdf/e.pdf|title=Industrial Pollution Control Measure in Yokkaichi, Mie Ken|publisher=International Center For Environmental Technology Transfer|accessdate=1 April 2010}} {{Dead link|date=October 2010|bot=H3llBot}}
3. ^{{cite web|url=http://www.unu.edu/unupress/unupbooks/uu35ie/uu35ie08.htm|title=Japan's Post-Second World War environmental problems|publisher=United Nations University|accessdate=1 April 2010}}
4. ^{{Cite journal|last=Kawamura|first=Hiroki|date=2018|title=The relation between law and technology in Japan: liability for technology-related mass damage in the cases of Minamata disease, asbestos, and the Fukushima Daiichi nuclear disaster|journal=Contemporary Japan|volume=30 |issue=1|pages=3–27|doi=10.1080/18692729.2018.1423459}}
5. ^{{cite web|url=http://www.ehjournal.net/content/7/1/8#B8 |title=Mortality and life expectancy of Yokkaichi Asthma patients, Japan: Late effects of air pollution in 1960–70s |publisher=Environmental Health Journal |accessdate=15 July 2009}}
6. ^{{cite web|url=http://www.terradaily.com/2004/040217072454.bopau66h.html|title=Asthma on the rise in Asia due to mounting urbanisation, pollution|publisher=TerraDaily.com|accessdate=1 April 2010}}
7. ^{{cite news|url=http://news.bbc.co.uk/2/hi/americas/1809705.stm|title=Mexico City's dirty truth|publisher=BBC|accessdate=1 April 2010 | date=11 February 2002}}

External links

  • Yoshiro Hoshino, 1992, "Japan's Post-Second World War environmental problems" Ui ed. Industrial pollution in Japan.
  • [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1566935/ Atmospheric Pollution Due to Mobile Sources and Effects on Human Health in Japan]
  • Yoshida et al., 2007, "Epidemiology and Environmental Pollution: A Lesson from Yokkaichi Asthma, Japan" in Willis ed. Progress in Environmental Research.
{{Four Big Pollution Diseases of Japan}}{{coord missing|Japan}}

9 : Pollution in Japan|1960s in Japan|1970s in Japan|Political scandals in Japan|Health disasters in Japan|1960s health disasters|1970s health disasters|Asthma|Yokkaichi, Mie
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