当前位置: X-MOL 学术IOP Conf. Ser. Earth Environ. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Mechanism of destruction of Quercus robur and Betula pendula leaves by exposure of organic pollutants
IOP Conference Series: Earth and Environmental Science Pub Date : 2020-12-02 , DOI: 10.1088/1755-1315/595/1/012052
L Belchinskaya 1 , N Khodosova 1 , L Novikova 1 , A Marcomini 2 , K Zhuzhukin 1
Affiliation  

Exposure of industrial pollutants including styrene, formaldehyde, acetone in the concentration range of maximal permissible concentration of working zone on leaves of silver birch (Betula pendula) and English oak (Quercus robur) chosen as model objects were studied and a mechanism of degradation was proposed. At a macroscopic level an indicator role of the leaf pattern for industrial organic pollutants with various functional groups was established. The differentiated effect of biotoxicants revealed selectivity of chemical reactions and appearance of various products of these reactions on the surfaces of the leaf blade. For all studied objects, systemic IR spectroscopic studies of cuts from oak and birch leaves were carried out. The characteristic frequencies testifying to interaction of pollutants with leaf tissue have been identified. The criteria for the control of tree plantations have been proposed, manifesting in a combination of two methods: at the macroscopic level, by establishing the indicator role of the pattern, and at the molecular level, by IR spectroscopic determination of chemical interaction in the system "functional groups of biotoxicants - leaf blade". The studies carried out make it possible to create a database of industrial pollutants and propose interrelated criteria for monitoring tree plantations.



中文翻译:

有机污染物对刺栎和白桦叶的破坏机理

以银桦(Betula pendula)和英国栎(Quercus robur)为模型对象,研究了工作区最大允许浓度范围内苯乙烯、甲醛、丙酮等工业污染物的暴露情况,并提出了降解机理。 . 在宏观层面上,建立了具有各种官能团的工业有机污染物的叶型指示作用。生物毒物的差异化作用揭示了化学反应的选择性以及这些反应的各种产物在叶片表面上的出现。对于所有研究对象,对橡树叶和桦树叶进行了系统的红外光谱研究。已经确定了证明污染物与叶组织相互作用的特征频率。已经提出了人工林控制的标准,表现为两种方法的结合:在宏观层面,通过建立模式的指示作用,在分子层面,通过红外光谱测定系统中的化学相互作用“生物毒物的官能团 - 叶片”。所进行的研究使创建工业污染物数据库和提出监测人工林的相互关联的标准成为可能。

更新日期:2020-12-02
down
wechat
bug