4.2.4.2   Adoption of a system applicable for the in Tokyo Bay (1967–1972). When it rains, the leaking water from landfills filled with toxic contaminants may pollute the underground water. Some think that the pollutant has been brought in by high altitude winds or have leaked from underground dumps. But they create harmful pollutants for plants and animals when these contaminants are mixed with water.

decided upon but the problem of data arrangement, interpretation, and assessment remained. years 1958 to 1973. We would like to point out that data presented

When these materials are dumped into the waters, they cause extensive changes that in the long run ruin and even kill aquatic life forms. By Y. Okada. This form of asthma was prevalent within Yokkaichi — 5–10% of inhabitants aged 40 in Yokkaichi were reported to suffer from chronic bronchitis, whereas less than 3% suffered from the same disease in non-polluted areas.[12].

Figure 22 - Concentrations of total mercury, cadmium, chromium, lead and Statistics on the consequences of the Deep Horizon spill from the Center for Biological Diversity provide a valuable insight into the impact of pollution on aquatic life. What is the main Cause of Air and Water Pollution? [Ibid], “The Basic Law indicates the responsibilities of the central government, local governments, and business firms with regard to controlling pollution. [Source: Web-Japan, Ministry of Foreign Affairs, Japan], Vehicle Emissions: As a result of the imposition of various rules and regulations, considerable progress has been made in limiting air pollution from factory smokestacks, but in Japan’s major cities air pollution from the nitrogen oxides and particulate matter emitted by motor vehicles continues to cause health problems. Table 19 - Area of reclaimed land in the Seto Inland Sea according to Also, most domestic home toilet wastes are predominantly emptied into underground septic tanks. In the case of brooks used to supply water for rice paddies concrete is often selected to widen channels when the job can be done just as effectively with earthen dikes. in Tokyo Bay during the winter. each vertical histogram represent the following sources of oil pollution: Itai-itai disease first occurred in 1912 within Toyama Prefecture. Figure 10 - 1 - Map of tidal currents in Tokyo Bay at the time of the These compounds can achieve concentrations in the air that cause unwanted effects on health and economy. red tide. Total ; shellfish ; fishes ; other fisheries source and type. In the 1990s pollution from dioxin released by trash incinerators became a major issue in society. The carcinogenic substance detected at two purification facilities was found in untreated water. More than 1,200 people were killed and thousands were sickened or disabled. Japan suffers from periodic red tides. quality of waste water, Monitoring and surveillance of water pollution. well as size and shade of dots in groups of threes denote the year of factors which affect fishery resources. In the septic tank, biological processes break down the liquid materials from the solids. Figure 6 - The state of water pollution in some important lakes and bays. For example, paper waste deposited into the water can take about 6 weeks to decompose. 8. After much controversy, Showa Denko was found guilty of negligence and was then forced to pay compensation payments to all victims of Niigata Minamata disease. Chisso executives were was so greedy that when high levels of mercury were found in the bay they decided to mine the sediments for mercury rather than clean the water. The smog effect or beret effect happens when a sort of dark fog is spread over the towns and fields. of registered cases of pollution outbreaks in various coastal waters (1974). (And Do They Mate With Other Species). Particulate matter which contains toxic chemicals when combined with water vapor causes acid rain. To show the water was safe one Chisso executive drank "treated" waste water but the water in fact was uncontaminated water from another source. The have been caught by the boatloads in the Sea of Japan off of Fukui, Shimane and Ishikawa Prefecture in western Honshu. PCBs detected in fish exceeded the allowable limit of 3 ppm. petroleum-related cases from undetermined sources; blank - cases unrelated to In February 2002, a team of university and start-up businesses announced that it had developed a purifier made from substances extracted from Japanese cypress trees that removes 90 percent of the pollutants from diesel exhaust. Vedantu academic counsellor will be calling you shortly for your Online Counselling session. Japan General Health Risks: Air Pollution [risk] In accordance with the World Health Organization's guidelines, the air quality in Japan is considered moderately unsafe.