| 1. | Polonium - 210 , a naturally occurring isotope of polonium , is found in all environmental media , such as in soil , air and even in human body , at very small amounts
钋210是钋元素的一个同位素，在所有自然环境中，例如泥土大气以至人体都可以找到极少量钋210 。 |
| 2. | The sources , exposure levels in various environmental media and corresponding environmental fates , number of significant episodes , and toxicities of these compounds were extensively reviewed
这篇研究就其发生源、环境流行与各种环境介质之暴露量、重大人类的暴露族群、戴奥辛的吸收、代谢、与排出暨戴奥辛的毒性作用作一综合介绍。 |
| 3. | Species interactions between bloom microalgae and other algae play essential roles in affecting the phytoplankton sequence either by competing for the available nutrient supply or by secreting extracellular organic substances ( allelopathy ) into the environmental medium
根据生态系统中的食物链关系，通过引人赤潮生物的天敌来防治赤潮也是一种治理方法。 |
| 4. | It is , therefore , recommended that studies on environmental behaviors , ecological effects and health risks of pathogens in sewage sludge and sludge - affected environmental media be developed as soon as possible , and corresponding abating approaches and key technologies also be explored
建议在我国尽快开展污泥和受其影响环境介质中病原物的环境行为、生态效应与健康风险研究，并发展相关的削减对策和关键技术。 |
| 5. | From 1987 to 1991 , the hong kong observatory ( hko ) conducted a comprehensive radiation monitoring programme to establish the baseline radiation levels in various environmental media in hong kong . these levels are the references against which data obtained after the commercial operation of the guangdong nuclear power station would be compared
香港天文台在一九八七至九一年期间，进行全面的辐射监测计划，定出本港环境中各种媒介的基准辐射水平，以便与日后广东核电站投产后，所测量到的水平作比较。 |
| 6. | From 1987 to 1991 , the hong kong observatory conducted a comprehensive radiation monitoring programme to establish the baseline radiation levels in various environmental media in hong kong . these levels are the references against which data obtained after the commercial operation of the guangdong nuclear power station would be compared
香港天文台在一九八七至九一年期间，进行全面的辐射监测计划，定出本港环境中各种媒介的基准辐射水平，以便与日后广东核电站投产后，所测量到的水平作比较。 |
