In the light of the gradual substitution of energy-saving lamps become the trend of the occasion, energy saving lamp mercury pollution caused by the parties concerned. Industry experts told reporters that the tube diameter of T5, T8 and other straight tube fluorescent lamps and circular fluorescent lamps due to the use of manual mercury injection process, more prone to excessive mercury content. The Ministry of environmental protection experts said that the Ministry is planning to develop products and related industries to strengthen the Tim mercury mercury pollution prevention policy, intends to ban the approved use of liquid mercury and manual injection of mercury fluorescent lamp production construction, renovation and expansion projects.
International negotiations pressure mercury containing electric light source
By the end of 2011, the national development and Reform Commission issued a ban on the import and sale of incandescent light bulbs and announced that by 2016, China will basically eliminate the use of ordinary lighting incandescent lamp. At the same time, the national development and Reform Commission, the United Nations development program, the global environment fund has also designed a China phasing out incandescent lamps, accelerate the promotion of energy-saving lamps cooperation projects. Shanghai ya'er light source limited company experts told reporters, which marks the incandescent lamp fluorescent lamp with high light efficiency has become an inevitable trend.
However, with the further promotion of energy-saving lamps mercury pollution has aroused concern of the community. Nanjing University of Technology Research Institute of electric light source materials Su Juan researcher provides data show that China's energy-saving lamp for mercury consumption is about 20 tons, and 1 mg of mercury into the ground will cause 360 tons of water and pollution of the surrounding soil, mercury emitted to the atmosphere with diffuse height and fat soluble. The newspaper had previously disclosed that the international mercury talks focused on the prevention and control of atmospheric mercury, Canada, northern Europe and other countries on the claims that the local fishery resources and mercury atmospheric circulation.
China as the world's largest mercury use and emissions of the country, in the 'global mercury instruments' negotiations are facing a huge reduction in mercury emissions pressure. Deputy director of the Ministry of environmental protection chemical registration center Jian Xiaodong revealed that in July this year, the fourth meeting of the Intergovernmental Panel on Environmental Affairs convened by the United Nations Environment program. The representatives of a legally binding global Convention on mercury (referred to as the "global mercury instruments") of the draft for further negotiations, to cut mercury supply, reduce demand for products and processes for mercury and reduce mercury in key areas of international trade is still in the process of negotiation.
Environmental protection department official told reporters, mercury documents as international conventions, and relates to persistent organic pollutants "Stockholm Convention" and "protocol to the Convention on biological to the highest level of international law, even more than climate change the" Kyoto Protocol "level is high.
According to the draft convention, mercury containing electric light sources are included in the control of mercury products. The provisions of the draft convention, limitation and elimination of mercury products production and trade, manufacturing is prohibited except for the exemption purposes Tim mercury products, the prior informed consent procedure or limit the import license system products import and export trade, and regularly report to the Secretariat information manufacture, import and export trade Tim mercury products.
Mercury containing electric light source products are not mature mercury free replacement technology, the short term can not be eliminated, however, the global mercury instruments on the control of electric light source products are not relaxed. "Kan Xiao Dong revealed that in July this year, representatives of Jamaica and Japan put forward the mercury containing electric light source products out of the list. On behalf of a number of countries that should be formulated for electric light source products mercury content of global limits, the mercury content exceeds the standard of the products will be eliminated within the exemption, in accordance with the standards of the products can apply in a certain time period, allowing its manufacturing and import and export.
Straight tube and annular fluorescent lamp mercury emissions are not optimistic
In the lighting industry, mercury is mainly used in the production of gas discharge lamp. "Secretary China Lighting Association chairman Chen Yansheng provides such a set of data to the reporter: according to estimates, in 2011 the whole industry with the amount of mercury is about 57 tons, which retained the mercury content in the product is about 40 tons, the amount of mercury emission in the process of production of about 17 tons. The fluorescent lamp is widely used in hospitals, schools and other places of lighting and light box advertising show in the field of total mercury content of up to 26.9 tons, higher than the energy-saving lamps used in Home Furnishing lighting, office lighting, commercial lighting and other fields (21 tons).
Specifically, compact fluorescent lamps (commonly known as "energy-saving lamps") of a single branch of mercury has become increasingly optimistic. The national electric light source quality supervision and inspection center Liu Shu, Wan Jing said, in 2008, the first in the world to complete the test survey, Chinese energy-saving lamp mercury levels. The results show that China in the mainland market, there are about 36% energy-saving lamp mercury levels of less than 5 mg limit value. In 2012, around the country a total of 80 batches of energy-saving lamp checks showed that more than 90% of the energy-saving lamp mercury content of less than 2 mg, to achieve "low mercury" level; even 11% energy-saving lamps can meet the mercury content limit of 1 mg, achieve "micro mercury level".
But the straight tube fluorescent lamp and the annular fluorescent lamp mercury reduction emission reduction situation is not optimistic. Reporter was informed that the national standardization of the national standards for lighting electrical equipment is being developed by the new national standard requirements, the maximum allowable mercury content in the fluorescent lamp is 3.5 mg. Industry experts Nanjing Institute of anonymity, told reporters that the T5 and T8 thin diameter straight tube fluorescent lamp and an annular fluorescent lamp with more manual mercury injection technology, prone to mercury content exceed the standard "in daily life, the proportion is 10% to 20%". According to the China Lighting Association statistics, in 2011, China's T8 straight tube fluorescent lamp production is about 1 billion 98 million
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