The Project for the Environmentally Sound Management of Used Lead Acid Batteries in the Kingdom of Cambodia REPORT “Inventory of Use and Management of Used Lead Acid Batteries in Sihanoukville City” Task Team’s Survey of Used Lead Acid Batteries in Sihanoukville City The Task Team responsible for carrying out the survey on used lead acid batteries in Sihanoukville City on 17-20 March 2004 were as follows: Mr. Chrin Sokha, Deputy Director of the Dept. of Environmental Pollution Control; Project Team Leader Mr. Ken Chaviran, Chief of Environment Research and Technology Management Mr. Sreng Sophal, Vice Chief of the Solid Waste Management Office Mr. Nov Chhun, Vice Office Chief, Representative of the Municipal Environmental Department of Sihanoukville, MEDoS Ms. Prak Vanny, Technical Officer - Representative of the Environmental Office of Prey Noup District; MEDoS Mr. Chan Sarun, Technical Officer - Representative of the Environmental Office of Stung Hav District; MEDoS Mr. Chea Sreng, Technical Officer - Representative of the Environmental Office of Stung Hav District; MEDoS 1. Use of Lead Acid Batteries S ihanoukville City is 232km (143 m) South West of Phnom Penh and located along the Coastal area adjacent to the sea with long beaches surrounded by Mountains. Sihanoukville is the second largest city in Cambodia after Phnom Penh and it is the country’s only large port, so it has been strongly considered by the Royal Government as a priority zone for national economic development, such as improved infrastructure to accommodate increased tourism, transportation demands, a growing industrial sector, and agriculture. Sihanoukville City attracts local and international tourists because of its outstanding natural resources especially its marine biodiversity. The City is 868 sq.m and comprises three districts, namely; Meatapheap, Prey Noup and Stung Hay. It is divided into 22 communes that are further sub-divided into 85 villages. The population of Sihanoukville City is approximately 161,743 (estimate 2002) with an average population density of 179 people per sq. km. The location of Sihanoukville City on the Coast and the periphery of a mountainous area means, that the generally high temperature varies little in the dry season, although it can go below 20°C during the coldest month. The annual rainfall is over 3,000 mm per year, higher than any other region. However, the precipitation varies widely from year to year. From late July, there may be periods without significant rainfall for ten or fifteen days, sometimes longer, and referred to as the "short dry season". Accordingly, local farmers tend to delay planting to minimize the risk of damage to the rice and crop seedlings. Fig. 2 - The Lush Green of Sihanoukville City The economic development of this city could pose serious environment problems if the growth is not in accord with sustainable development. In this regard, used lead acid batteries (ULAB) are considered and recognized to be one of the main factors causing adverse impacts to human health and the environment. To implement the work plan for the Project to establish an “Inventory of Used Lead Acid Batteries in Cambodia” and provide the Environmentally Sound Management (ESM) of ULAB throughout the country, the project Task Team, in cooperation with line institutions, has conducted surveys on ULAB in four designated areas; the Phnom Penh Municipality, Battambang Province, Svay Rieng Province and now Sihanoukville City. These four areas were selected because of their economic and social diversity, so that the team could compare the ULAB situation in areas with high and poor living standards, and in rural and urban surroundings. 2. Use of Lead Acid Batteries The surveys are focused on retailers; battery servicing (recharging/reconditioning) centers, solar energy facilities, scrap yards, and ULAB recycling plants such as smelters or melters. In addition to the survey, the Task Team also conducted a series of interviews to determine the levels of awareness of the risks and hazards posed by ULAB to the environment and those people involved in selling, using and recovering ULAB. For household lighting, the population of Sihanoukville do not depend entirely on the electricity provided by the local authority, except those who live in the main parts of the City. The Population Census of 1998 revealed that people use lead acid batteries to provide about 0.5% of the electrical demand, the city power company provides about 37.3 %, generators 2.5%, city power and generators 1.8%, kerosene 57.3% and other power sources 0.7%. One noticeable and disturbing fact unearthed is that lead acid batteries are being used extensively by fishermen in rural areas to electrocute shoals of fish1. 2.1 Battery Retailers and Automotive Shops In Sihanoukville, the battery retail shops in the town are small, selling motor accessories, spare parts or even carrying out vehicle repairs. It would appear that about 70% of the shops are located in residential areas and 30% ain the market areas. The battery retailers disclosed that they sell all types of batteries in Sihanoukville and they are supplied from offices and companies in the Phnom Penh Municipality. As an observation, all the batteries displayed were brand new batteries produced in Japan, Thailand, Korea, Malaysia, Vietnam2 and so on. The types of batteries differed from place to place depending on the particular local customer demand and sales varied from Figure 3: Batteries for sale in the Meatapheap District day to day. According to the information given by the battery retailers, Sihanoukville’s population buy batteries for domestic and many other purposes just like other areas throughout the country, for instance, domestic lighting, TV and Radio, pumping water (that is - surface and ground water), starting vehicle engines, spotting wild animal/birds at night time and as already mentioned above, for marine fishing. Battery life seems to vary from eight to twenty four months, depending on the make, the price, the use and the maintenance. In the battery shops visited, the only workers were the owners and a few of their relatives. They work from 7:00 am to 5:00 pm. In addition to selling batteries, the shops also provide other services, such as, testing batteries to determine the state of charge and ascertain whether it requires replacement or recharging, checking the electrolyte levels and where necessary topping up with deionized water. 1 This is a most undesirable practice because the electric shock kills all living creatures close to the point of delivery of the current. This form of fishing, whilst not as dramatic as using dynamite, is as devastating. Furthermore, unlike dynamite, LAB are easy to obtain and can be used many hundreds of times at negligible cost. This form of fishing is not sustainable and will have a disastrous impact on the local eco system. 2 Vietnamese battery production is less than 2% of total sales in Cambodia In daily practice, those working in the shops do not use any personal Protective equipment (PPE), for example, gloves, goggles or masks. Remarkably, none of the shops was engageding in battery reconditioning because the price for reconditioning was more expensive than the cost of a new battery and the quality is always inferior. Fig. 4 - Battery shop with recharging service in Meatapheap District 2.2 Recharging Shops Most of battery retail shops in Sihanoukville also offer a battery recharging service and at least 20% of the shops only provide a battery recharging service. The battery recharging shops are mostly located in the rural areas and amongst the local communities close to the sea. However, there are a few recharging shops located in the center of the town. The local authorities informed us that there are 12 battery recharging shops operating in Sihanoukville, of which 3 shops are in the Meatapheap District (in town), 3 shops in the Stung Hav District, and the remaining 6 are in the Prey Noup District. According to information obtained from the owners of the battery recharging shops, we concluded that only a small number of batteries are recharged in Sihanoukville Town, perhaps 5 to 20 batteries per day. However, battery recharging activity increases in the rural areas where the electricity supply is either inadequate or unreliable. The number of batteries recharged per day is somewhere between 50 to100 batteries, and especially high over a national holiday or New Year. The one battery recharging requirement in Sihanoukville considered to be different from other areas of the country is for marine fishing purposes. In the dry season, battery recharging demand decreases because the fishermen move from the waters around Sihanoukvilleto other places outside the Town’s boundary where the fishing yields are much higher. The fishermen return during the raining season when local yields are at there highest. Consequently, those battery recharging shops close to the sea are more active in the rainy season. Most of the shop owners told the Task Team that they had started their businesses about ten years ago. As far as the recharging process is concerned, some shop owners use diesel generators to produce a DC current, if the local power supply is inadequate for battery recharging, but others in the City do use the local electricity supply. The charging time is normally between 5 and 8 hours and the price for recharging is between 1000 and 2000 riels (0. 25 to 0.50 US$) depending on the battery’s capacity. Battery reconditioning is not being undertaken at any of the premises for recharging batteries in Sihanoukville. Observations of the recharging practices in Sihanoukville were confusing. In some cases the battery caps were left in place and not loosened to allow gases generated in the recharging process to escape, but it was unclear if this was because the batteries were the new generation of valve regulated batteries, in which case the cap should be left closed, or whether it was just bad practice. This will be clarified because if the batteries were not valve regulated, there is a serious risk of explosion. Fig. 5 - Unsafe Battery recharging procedures are used in Veal Regn and Prey Noup Districts Fig. 6 - Batteries being recharging in the owner’s house in Sihanoukville Town Another important point to be considered is whether there are any detrimental health effects on those people living (both eating and sleeping) near to or in the rear of the battery recharging room as shown in the above pictures. 3.0 Solar Energy and Lead Acid Batteries Even though Sihanoukville is a city of industry, tourists, sea fishing and commerce, the local authority have never considered or discussed the use of solar energy to provide power to these businesses or educational institutions. It is surprising, because solar energy technology is available and used in the Western, Northern, and Southeastern parts of Cambodia. Generally, solar energy3 is used in schools, hospitals, Buddhist Temples, some public areas and so on. 4.0 Scrap Yard The Scrap Yards in Sihanoukville City purchase a mix of scrap items from the local people and scavengers such as, iron, aluminum, plastic, glass, bottles, tins, paper, cartons, ULAB, etc. The statistics disclosed by the staff of the Municipal Department of Environment of Sihanoukville indicated that currently there are 19 Scrap Yards open in the City of various sizes depending on the scale of the operation. There are 13 Yards in Meatapheap District, 3 in Stung Hav District, and 3 Yards located in the Prey Noup District. 3 These consumptions are supported by the Government, NGOs and some International organizations The shops generally had a ULAB stock of less than 5%, which was bought from local people or scavengers mixed with other scrap items previously mentioned. The Yard owners bought ULAB from scavengers who collected or purchased them directly from the isolates villages or communes at low prices and transported them to Sihanoukville using their own bicycles or hand carts. Fig. 7 - Scrap Yard near the Sihanoukville Sea Port Nowadays, the respective scrap dealers have their own scavengers to collect ULAB from isolated areas throughout the Districts. However, the owners revealed that they only obtain about 2 or 5 ULAB per week costing 600 to 100 riels/kg (0.15 to 0.25 US$). Unfortunately, those selling the batteries discharge the acid before weighing. Not all the scrap yards are involved in the melting of ULAB to extract the metallic lead. The ULAB obtained from scavengers and sold to traders in Phnom Penh every two or three months amounts to 200 to 600 kg on average, but can be up to 1000 kg. Fig. 8 - Scrap Yard in the Tumnop Rolork Area 5.0 Management and the Environment Those working in the battery recharging centers and the scrap yards in Sihanoukville are generally exposed to health risks and may be a causes ofenvironmental pollution, including damage to the local ecosystem. In any event, health impacts may also occur through their daily lives if, for example, they use the workplace as a dining room or a playground for the children is close to a recharging center. 5.1 Recharging Centers The negative health and environmental impacts associated with recharging batteries are generally most prevalent inside the charging center and the areas in the immediate vicinity of the battery recharging center. The issues of major concern include the following: Noise pollution occurs from the generators operating during rest periods. Bad smells emitted from lead acid batteries during the charging process and sometimes when topping them up with the deionized water. Most of the recharging shops do not have enough ventilation because is the charging is carried out in a small enclosed room. One recharging shop owner in Veal Regn, one of the main communes in the Khan Prey Noup, said that he has felt discomfort in his lungs and respiratory system in the last few years and concluded that perhaps this had resulted from improper recharging methods within a closed area. Fig. 9 - Working without any PPE in the Veal Regn Commune, Prey Noup District Fig. 10 - Battery Recharging Shop with a living area in the rear of the shop in Veal Rinh, Prey Noub district Battery electrolyte spillage from poorly managed ULAB storage, careless topping up, and sometimes disposal onto the ground or into local streams or fresh water. Most workers do not use any PPE, for instance, mask or gloves during their work. There is no fire extinguisher installed in the shop for emergency use. Anybody and anything, including domestic animals, can freely enter or move across the recharging areas. Worst of all, the owners and his/her relatives live and eat at a place close to the recharging areas. Children play with their friends near to the recharging areas placing themselves at high risk of exposure during gassing emissions from batteries being charged correctly or not. Most interviewees responded to the questions relating to environmental and health impacts with limited understanding and awareness of the risks. Moreover, as far as their own experiences of up to 10 years they all said that they had never been concerned about these issues or considered the consequences. However, they accepted the Task Team’s explanation of the risks and dangers posed by poor handling and agreed with the safety advice given accepted that adoption of such countermeasures would be beneficial to the environment and reduce the risk to human health. 5.2 ULAB in the Scrap Yard Some environmental and human health impacts are recognized to be linked directly with people who work in the scrap yards, affecting the areas close to the yards, the workers children and domestic animals as well. A few of the negative observations noted by the Task Team at the scrap yards included: Scrap items are placed untidily inside and outside the yard, causing public nuisance, loss of natural aesthetics and so on. Workers do not wearing gloves, goggles or masks during their work. Working practices are especially poor and they constantly handle batteries with their bear hands when electrolyte is clearly seen to have been leaking onto the casing. ULAB collected from local people or scavengers are stacked near to eating places or living rooms in an untidy condition. . Figure 12 below shows a pile of ULAB beneath a bed in a living room. This storage method can cause high risks to people who stay in this room, especially young children. The dust from mixed scrap items causes environmental degradation and endangers the health of the neighboring population. Fig. 11- the Untidiness of the scrap was noted by the Task Team in a yard near the seaport Fig. 12 - Stockpile of ULAB under a bed in a living room in the Veal Regn Commune 5.3 Awareness of the Risks to Human Health and the Environment After the survey in this City, we acknowledged that the people/workers’ awareness of the environmental and health impacts resulting from their daily lives and occupations involving new and used lead acid batteries is limited in both urban and rural areas. The people responsible for battery recharging and the scrap yards do not really care about consumer or occupational safety at their premises. There are no restrictions to anyone walking into the work areas, especially children, who could easily enter the battery recharging areas or the battery storerooms. Battery electrolyte is regularly spilled or poured into the ground or water sources without treatment. Owners regularly place stockpiles of ULAB in a bedroom, a dining area and anywhere else they can find, regardless of its prime use. 6. Conclusions and Recommendations The daily management of ULAB in Sihanoukville and the attitude of those people involved towards ULAB is posing a high risk to the environment and public health. Significantly, there is no management aspect identifying the responsible government institution, not even the local authorities. Consequently, there are no education programs on human health or proper protection in their daily occupations. In this regard, some effective countermeasures should be developed and promoted as follows: Clearly identify roles and functions for the responsible institutions, so that, through proper coordination of resources they achieve sound environmental protection and good public health. Promote participation from educational institutions, NGOs, the private sector, and especially the local authorities in managing/recycling ULAB based on environmentally sound technology. Carry out an educational program of health care and sound environmental management for local communities against the negative impacts resulting from people’s daily occupations, especially the Commune Boards. Set up specific legal instruments targeting ULAB management/recycling in an effective way, including the preparation of a national action plan for managing used lead acid batteries. . Regularly monitor, control, and follow up the various activities of key stakeholders towards the management of ULAB, including the use of legal instruments. Find out enable managing/recycling technology for Cambodian circumstance. Assess the environmental and human health impacts resulted from the storage/recycling of used lead acid batteries and reporting to the Government and concerned ministries as well. Chrin Sokha, Mr. Deputy Director Dept. of Environmental Pollution Control Ministry of Environment, Cambodia Project Team Leader Date: 27 March 2004