CAJ | 학술논문

石油类污染物主要以漂浮油、分散油、乳化油和分解油等形式存在于水体中,影响着水体的表观和固有光学特性.利用2008年5月在辽宁省盘锦市辽河油田境内双台子河和绕阳河所测定的水色三要素吸收系数以及对应的水体组分数据,分析了研究区域内Ⅱ类水体水色三要素的吸收光谱特性;探讨了水体中由于石油类污染物的存在,黄色物质和色素吸收光谱的变化特征;采用差值法确定了水体中石油类污染物的吸收系数.研究结果表明:(1) 研究区域内,无论是石油类污染水体还是非石油类污染水体,非色素颗粒物和黄色物质的吸收光谱都遵循e指数衰减规律,色素吸收光谱在440nm和675nm处有以叶绿素为主的典型的色素吸收峰,在490nm处有类胡萝卜素的吸收峰;(2) 对于石油类污染水体,在测定黄色物质和色素吸收系数时,由于包含了石油类污染物的作用,会增大黄色物质和色素的吸收系数;(3)石油类物质的吸收光谱曲线和非色素颗粒物、黄色物质一样遵循e指数衰减规律,但三者的指数函数斜率有明显的差别,这为将三者区分开来提供了可行性.
석유류오염물주요이표부유、분산유、유화유화분해유등형식존재우수체중,영향착수체적표관화고유광학특성.이용2008년5월재요녕성반금시료하유전경내쌍태자하화요양하소측정적수색삼요소흡수계수이급대응적수체조분수거,분석료연구구역내Ⅱ류수체수색삼요소적흡수광보특성;탐토료수체중유우석유류오염물적존재,황색물질화색소흡수광보적변화특정;채용차치법학정료수체중석유류오염물적흡수계수.연구결과표명:(1) 연구구역내,무론시석유류오염수체환시비석유류오염수체,비색소과립물화황색물질적흡수광보도준순e지수쇠감규률,색소흡수광보재440nm화675nm처유이협록소위주적전형적색소흡수봉,재490nm처유류호라복소적흡수봉;(2) 대우석유류오염수체,재측정황색물질화색소흡수계수시,유우포함료석유류오염물적작용,회증대황색물질화색소적흡수계수;(3)석유류물질적흡수광보곡선화비색소과립물、황색물질일양준순e지수쇠감규률,단삼자적지수함수사솔유명현적차별,저위장삼자구분개래제공료가행성.
Petroleum pollutions exist in waters in various forms, which impacts its apparent optical properties and inherent optical properties. Field works has been carried out in the rivers in Panjin city, Liaoning province of China in May 2008 in order to understand this impact. The absorption coefficient data of yellow substance, De-pigment particles and phytoplankton pig-ments and the corresponding water samples for laboratory measurements of chlorophyll, petroleum pollutions, and suspended material were collected. Firstly, absorption spectral features of yellow substance, De-pigment particles and phytoplankton pig-ments in Case Ⅱ water were analyzed. Secondly, the absorption spectral properties of yellow substance and phytoplankton pig-ments with petroleum pollutions were discussed. Finally, the impact of petroleum pollutions on water absorption properties was analyzed using the method of algebraic difference. The results showed that (1) whether there is petroleum substance or not in water body, the absorption spectra of yellow substance and de-pigment particles all follow e-exponential attenuation trend in the research region; (2) with the presence of petroleum pollution, the absorption coefficients of yellow substance and phytoplankton pigments are both increased; (3) the absorption spectral feature of petroleum pollution appears similar to those of the yellow substance and de-pigment particles by following an e-exponential attenuation trend. However, it is feasible to distinguish them because their spectral exponential slopes have obvious difference.