多环芳烃（萘）污染对绿萝生理指标的影响
毕业论文关键词：多环芳烃；萘；叶绿素；过氧化物酶活性
Effects of PAHs (naphthalene) on physiological indexes of Scindapsus aureus
Abstract: In the process of rapid development of modern petrochemical industry, resources and transportation industry, as well as excessive life rubbish and industrial waste, the environmental problems of organic contaminants attracted much attention in recent years. Polycyclic aromatic hydrocarbons (PAHs) are persistent organic pollutants, which widely exist in soil, crops, water, food and the atmosphere. In some serious pollution area, the content of PAHs in soil could be up to 10 mg/kg, which is harmful to the safety of agricultural products and human health. In this work, the hydroponic experiments were conducted. As one of PAHs, naphthalene was focused. Scindapsus aureus was selected as the model hydroponic plant. The effects of naphthalene on physiological indexes of Scindapsus aureus were investigated. The results showed that chlorophyll content of Scindapsus aureus decreased gradually and peroxidase activity of Scindapsus aureus increased with the increasing of naphthalene concentration. It can be seen that there was the obvious toxicity of naphthalene on hydroponic plants. It is suggested that the effects of naphthalene pollution on aquatic plants can be assessed with the chlorophyll content and peroxidase activity of hydroponic plants using spectrophotometer.
Keywords: Polycyclic aromatic hydrocarbons; Naphthalene; Chlorophyll; Peroxidase activity
目录
1 绪论 1
1.1 课题背景及研究目的 1
1.2 国内外研究现状 1
1.3 多环芳烃的基本性质及种类 1
1.3.1 多环芳烃的物理化学性质 1
1.3.2 多环芳烃的种类 2
1.4 多环芳烃（萘）的基本性质及用途 3
1.4.1 萘的基本性质 3
1.4.2 萘的用途 3
2 实验研究 5
2.1 实验材料与药品 5
2.1.1 实验材料的基本性质 5
2.1.2 实验药品 6
2.2 实验仪器与设备 6
2.3 实验方案设计 7
2.3.1 供试植物 7
2.3.2 实验设计 7
3 实验结果测定 9
3.1 植物外表伤害症状测定 9
3.1.1 植物外伤症状测定标准 9
3.1.2 植物外伤症状测定结果 9
3.2 光合作用指标测定 10
3.2.1 实验原理及方法 10
3.2.2 实验材料、器具及药品 10
3.2.3 实验步骤 11
3.2.4 实验结果 11
3.3 过氧化物酶活性测定 12
3.3.1 实验原理及方法 13
3.3.2 实验材料、器具及药品 13
3.3.3 实验步骤 13