“回用油”的危害有多大

正9月4日,台湾地区爆发一起地沟油事件,已查明有超过800吨劣质油品流入台湾及港澳地区,200余家企业受影响,其中不乏味全、台糖、康师傅、旺旺、85度C等知名品牌。很多人都认为地沟油是从地沟里捞出来的那种黏腻腻、湿嗒嗒、肮脏、恶心的油脂,经过再加工端上我们餐桌的。其实不尽然,目前实际遇到最多的是餐厨废弃油脂,特别是煎炸废弃油,那些反复加热或高温煎炸后的"回用油"危害更加严重。餐厨废弃油脂经过滤精炼,杂质可以滤除,微生物指标可以合格,水分指标也可以合格,颜色也可以变浅,一切可以看起来很正常,但是,多次加热和氧化所带来的巨大危害是无法去除的。     

“兰桂飘香是我家”

汤兰瑞,浙江诸暨人,台湾工业安全卫生协会名誉理事长,曾参与起草和制定了数部台湾地区职业安全卫生法规。退休后,他一直致力于推动两岸职业安全经验交流的活动。“夫妻感情对于一个人的健康和家庭最重要,要相互谦让,互相爱护,要记住咱中国人的老话‘家和万事兴’。”今年5月,在西安参加“两岸四地职业安全健康学术年会”时,又一次与汤兰瑞老先生相见。这次与他交谈时间较长,但见他视力和听力大不如前,可气色很好,思维敏捷,乐观豁达,言谈举止温文尔雅。他说,这都缘自有一个     

Live Earth气候危机音乐会上海接力棒

2007年7月7日晚7时,Live Earth气候危机音乐会上海站演出在上海东方明珠电视塔下隆重拉开帷幕。国际巨星莎拉·布莱曼,香港及台湾地区的知名艺人陈奕迅、许慧欣、辛晓琪、黄晓明、黄耀明、容祖儿、SOLAR乐队以及内地当红女子十二乐坊都云集于此,他们用各自的表演来支持LIVE EARTH的倡议。     

Distribution and contamination status of chromium in surface sediments of northern Kaohsiung Harbor, Taiwan

The distribution, enrichment, accumulation, and potential ecological risk of chromium (Cr) in the surface sediments of northern Kaohsiung Harbor, Taiwan, China were investigated. Sediment samples from ten locations located between the river mouths and harbor entrance of northern Kaohsiung Harbor were collected quarterly in 2011 and characterized for Cr, aluminum, water content, organic matter, total nitrogen, total phosphorous, total grease, and grain size. Results showed that the Cr concentrations varied from 27.0 to 361.9 mg/kg with an average of (113.5±87.0) mg/kg. High Cr concentration was observed near the Jen-Gen River mouth. The mean Cr concentration was high at 255.5 mg/kg, which was at least 2 to 7 times than that of other sites. This might imply significant Cr contribution from upstream receiving tanneries wastewater into the Jen-Gen River. The spatial distribution of Cr reveals relatively high in the river mouth region, especially in Jen-Gen River, and gradually diminishes toward the harbor entrance region. This indicates that the major sources of Cr pollution from upstream industrial and municipal wastewaters discharged along the river bank; and Cr may drift with sea current and be dispersed into open sea. Moreover, Cr concentrations correlated closely to the physical-chemical properties of the sediments, which suggested the influence of industrial and municipal wastewaters discharged from the neighboring industrial parks and river basins. Results from the enrichment factor and geo-accumulation index analyses imply that the Jen-Gen River sediments can be characterized as moderate enrichment and none to medium accumulation of Cr, respectively. However, results of potential ecological risk index indicate that the sediment has low ecological potential risk. The results can provide valuable information to developing future strategies for the management of river mouth and harbor.