Levels Pb (Lead) Content in The Thallus Lichens at Three Shade Tress in The Terminal Pinang Baris Medan, North Sumatera

Autor:	Rosliana Siregar, Aswarina Nasution, Tri Harsono, Ashar Hasairin
Rok vydání:	2020
Předmět:	History Horticulture Geography Lichen Computer Science Applications Education Thallus
Zdroj:	Journal of Physics: Conference Series. 1462:012065
ISSN:	1742-6596 1742-6588
Popis:	This research aims to know the levels of Pb (Lead) on thalus lichens found on the three forest shade trees road in the area of Terminal Pinang Medan, North Sumatera. Type of this research is a descriptive exploratory survey method. Measurement of the levels of lead (Pb) using Furnace (destruction of dried) and Atomic Absorbance Spectrophotometer (AAS) in Medical Field Laboratory Hall. From the results of research conducted in the Terminal Area of Pinang Baris Medan, it is known that there are 12 different types of lichens. Results of the study known types of lichens that have levels of lead (Pb) is a type of most lichens Parmelia grabratula 49,01 mg/kg from Acacia trees (Acacia auriculiformis) I, and the lowest levels of lead (Pb) is a Palm tree from Buellia canescens 10,19 mg/kg III (Hyophorbe sp.).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::68d9bce619f2d656474c24ed3d3b4683 https://doi.org/10.1088/1742-6596/1462/1/012065 Zobrazit plný text záznamu