Correlation of lead (Pb) content towards the number of stomata on the plant Dracaena marginata tricolor in some places of Surabaya City

Hamidah Hamidah,Hery Purnobasuki,Dwiyanti Putri

doi:10.1051/e3sconf/202015302002

Abstract

This research is an observational study that aims to determine the characteristics of stomata in the leaves of Dracaena marginata tricolor. This research is descriptive analysis. Sampling was carried out at three locations which had different levels of motor vehicle density, the location at Bundaran Dolog, Jl.Gading Ketabang and Kebun Bibit 2.The calculation of the average lead level in the Dracaena marginata tricolor leaf from the highest was obtained at the Bundaran Dolog Surabaya 2.01 µg / g. Calculation of the average lead level atDracaena margata tricolor leaf of Jl. Gading Ketabang was obtained at 1.06 µg / g and at Kebun Bibit 2 Surabaya obtained an average lead level in the leaves of Dracaena marginata tricolor of 0.82 µg / g. The highest calculation of the number of leaf stomata at the Bundaran Dolog Surabaya of 21. At the location of Jl. Gading Ketabang obtained an average number of stomata of 18 and at the location Kebun Bibit 2 Surabaya the results of the calculation of the average number of stomata were 16.

Highlights

Air is an important factor in life, but with the increasing physical development of cities and industrial centers, air quality has changed
This study examined the differences in lead content (Pb) and the amount of stomata in Dracaena marginata tricolor plants
Dracaena marginata tricolor leaf samples taken were stored in plastic bags that have been labeled for further observation of the number of stomata using a microscope at 400x magnification

Summary

Introduction

Air is an important factor in life, but with the increasing physical development of cities and industrial centers, air quality has changed. The main function of stomata is as a place of gas exchange, such as CO 2 which is needed by plants in the process of photosynthesis. Because Widagdo (2005) states that the entry of Pb lead into leaf tissue is strongly influenced by the size and number of stomata. Determination of plants as an indicator of lead (Pb) through physical changes is still considered lacking, considering the physical changes in leaves can be caused by many factors other than lead (Pb). For this reason, it is necessary to conduct laboratory tests to determine the level of accumulation and lead content in plant leaves used is SSA ( Atomic Absorption Spectroscopy)

Methods

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Discussion

Conclusion