Case Studies: Accident of a Truck Containing Nitric Acid on Bang Na

Case Studies: Accident of a Truck Containing Nitric Acid on Bang Na

-Chapter II- -Access to Environmental Information-- Case Studies: ° Accident of a Truck Containing Nitric Acid on Bang Na-Trad Road ° Illegal Landfill of Hazardous Waste at Pak Chong District, Nakhon Ratchasima Province Introduction General Situation During the past years of country development, Thailand has accelerated her economic development by maximizing the use of human and natural resources, employing modern technologies, and increasingly importing hazardous chemicals and substances in order to increase the productivity. As a result, the industry has grown very rapid, so has the economic growth and changes. Although such economic changes have positive impacts on the general population including better education, life conditions and well-beings, several changes have caused negative impacts on human health sanity and safety due to higher exposures to environmental emergencies. The use of hazardous chemicals in agricultural, industrial, and public health sectors has increased rapidly. It was found that the domestic production of hazardous chemicals has increased from 2.74 million tons in 1993 to 23.0 million tons in 2004; where as, the import of hazardous chemicals has increased from 2.79 million tons in 1993 to 5.0 million tons in 2004 (Office of Natural Resources and Environmental Policy and Planning, 2004; Pollution Control Department, 2004). These domestically produced and imported hazardous chemicals are in the form of ready-chemical products and basic active ingredients that are used as raw materials in manufacturing and agricultural sectors. Most of them are classified as inflammable, explosive, poisonous and corrosive substances, and currently they are being improperly employed. It was found that people are lacking of responsibility, awareness, and carefulness in using these hazardous chemicals and there was no effective system for managing hazardous substances‘ life cycle covering importation, production, distribution, transportation, usage, storage and waste disposal. As a result, serious accidents and disasters have occurred with an increasing in numbers, variety, and complexity such as chemical leaks from factories, gas explosions, fires in high-rise buildings, traffic accidents and dangers from radioactive materials. These chemical related accidents generated direct and indirect harmful poisoning to human and the environment. Such harmful poisoning can cause acute and chronic illnesses as well as trauma deaths and property losses. Moreover, the environment including soils, waterways, and sediments, have been contaminated with toxic chemicals. The chemical residues have been accumulated and persistent, which would finally damage the ecosystem. According to official records on emergencies resulting from chemicals and hazardous substances in 2000-2004 collected by the Emergency Response and Remediation Division, Waste and Hazardous Substance Management Bureau, Pollution Control Department, it was found that the frequency of environmental emergencies 52 -Chapter II- -Access to Environmental Information-- including chemical leakages, chemical inflammation, chemical explosion, had increased years by years. Numbers of environmental emergencies increased from 20 cases in 2000 to 29 cases in 2004. In the latest year of record, these chemical related accidents caused 140 injuries and 27 deaths. Findings of a study conducted by the Knowledge Management Unit for Road Safety under the support of Thai Health Promotion Foundation revealed that densely populated capital such as Bangkok was vulnerable to chemical accidents. The risk is particularly high for the people living in areas adjacent to 5 main transport routes of hazardous substances: Highway 35 (Samut Sakhon-Thonburi-Pak Tho), Highway 34 (Bang Na-Trad), Highway 7 (Bang Pakong), Highway 36 (Chonburi-Rayong bypass), and Highway 3 (Map Ta Phut area). This study also projected that about 13,866 tons of hazardous substances were transported a month, of which 47 percent was inflammable liquid. Moreover, the study found that 26 percent of the vehicles transporting hazardous substances had warning labels affixed on one side only (theoretically, labels must be affixed at sides and back of the vehicle), while 12 percent had no hazardous substance indicator signs at all (Bangkok Post, March 20, 2004, p.4). Besides hazardous and chemical substance related accidents generated from transportation process and in the factory mentioned above, the long-term impact on human health and the environment resulting from hazardous substance uses is another major concern, especially for those in agricultural sector. The statistics report of sickness and death from toxin, collected by the Epidemiology Division, Ministry of Public Health, in 2002, indicated 751 sickness cases and 11 deaths due to pesticide poisoning. 202 persons were sick due to exposure to toxic chemicals, and another 107 were affected by heavy metal contamination, of which 56 were lead poisoning cases. Although the total numbers of patients and deaths caused by hazardous chemical exposures decreased when compared to those in 1998, the number of patients suffered from chemicals and heavy metals remains high. Regarding the government‘s efforts in solving and preventing accidents caused by hazardous substances, the past efforts were proved to be inefficient due to the variety and complexity of responsible agencies (source: interview statement of Mr. Pramoun Ruchanaseri, Deputy Minister of the Ministry of Interior (at that time), Matichon Newspaper, February 27, 2004, page 15). Experienced with an increasing number of hazardous substance related accidents, the government agencies recognized the need of coordination and integrated measures. As a result, Hazardous Substance Committee has been established. The Committee has an important role in regulating and managing 10 types of hazardous substances such as toxic substances, radioactive substances, flammable substances, explosive substances, etc. The regulatory committee is deemed to take a systematic management of chemicals‘ life cycle including importation, storage, transferring, packaging and directing transport routes to prevent serious impacts on people in case there are emergency situations and chemical accidents (Matichon Newspaper, February 27, 2004, page 15). Furthermore, the National Coordinating Committee on Chemical Safety had made an effort to set up a system of chemicals and chemical wastes transportation. It was announced that from now on, the Pollution Control Department is to be notified when chemicals are transferred and transported. The rule also requires traffic police to be informed the transport route; deviating from the informed route is prohibited. Also, the officials of the Bangkok Metropolitan Authority are to be informed when transporting chemicals and chemical wastes across the city. In this regard, the Department of Disaster Prevention and Mitigation will be the core agency to develop such transportation system (Dailynews Newspaper, February 27, 2004 page 3). 53 -Chapter II- -Access to Environmental Information-- Case Selection This section describes the assessment of access to information about environmental emergencies that have local or small scale impacts. Two incidents were selected as cases studies: 1) Accident of a truck containing Nitric Acid on Bang Na-Trad Road, February 24, 2004. 2) Illegal landfill of hazardous wasted at Pak Chong district, Nakhon Ratchasima province, September 8-9, 2004. The first case is an example of road traffic accident, the leading cause of death in the country. The impact of hazardous chemicals-carrying truck accidents is generally more severe than that of passenger car accidents as seen in the case of a massive explosion caused by the LPG-containing truck accident on New Petchaburi Road inside Bangkok in 1991. Many people were injured by this accident and 91 of them were dead. Statistics reports indicated that traffic accidents from trucks carrying chemical still occur frequently each year, though the degree of severity varies across cases. Many factors influencing the degree of severity include the distance between the accident site and the residential area, the level of traffic density, the type and quantity of chemical leaks, the timeliness and accuracy of rescuing method and the effectiveness and timeliness of informing the people living near by and the commuters of the roads around that area on the situation. In addition, in term of assessment aspect, the selected case study can be used to compare with the case of a Acrylonitrile-carrying truck accident, the studied case in the pilot test of TAI indicators. The comparison allows the researchers to track the progress of public access to information concerning environmental emergencies (Details of this case study is given in Appendix 2). The Illegal Hazardous Waste Landfill in Pak Chong case is an example of the chemical related emergencies which ranks the second top of man-made disasters. In this case, the health and environmental hazards are from hazardous wastes that were illegally dumped. Even though this incident did not cause fatal effects to the local people, it had left hazardous chemical residues to the environment in that area, especially contamination to the soils. There was also a concern over the underground water and nearby plants being contaminated with toxic chemicals. The problem of hazardous chemicals and wastes has been aggravated as the demand of hazardous chemicals has rapidly increased in industrial and agricultural sectors. If there

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