Optical characteristics and numerical simulations of microalgae and plastic litter in surface waters using portable 405-nm LD-based fluorescence lidar

Clicks: 4
ID: 287229
2024
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #426 of 3,757 articles by views in Malay Journal

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 3,757 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Water pollution has been an emerging problem resulting from poor waste management which may lead to serious health and sanitation hazards. Some of the water pollutants include chemicals, trash, bacteria, parasites, and microalgae. Optical techniques, including absorbance-fluorescence, FTIR, and Raman spectroscopy, have been extensively utilized for the detection of suspended particles on surface waters. While these techniques offer accurate analytical results for the detection of suspended particles like microalgae and microplastics, the data acquisition process typically exceeds an hour, making them time-consuming methods. Considering the environmental, economic, and health impacts, and their rapid spread and persistence, the need for real-time, in-situ monitoring of microalgae and microplastics is needed. This study aims to develop a portable LD-based fluorescence Light Detection and Ranging (Lidar) system for microalgae and plastic litter detection in surface waters and investigate their optical properties. Advanced algorithms were employed to differentiate between microalgal and microplastic fluorescence spectra, enabling accuracy and reliability in detection. The experiments were carried out in a controlled environment using a fluorescence lidar system with 405 nm excitation wavelength to determine the fluorescence signals of several plastics at 470 nm emission wavelength. Simultaneous detection of PET plastic and Chlorella vulgaris were also observed to determine the fluorescence influence of chlorophyll in surface waters. Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy was employed to study the chemical composition of the plastics used before and after being submerged in the water. Scanning electron microscopy (SEM) and high-resolution camera microscopy were used to analyze the morphology of the submerged PET samples. This study provides a basis for a novel in-situ technique using a fluorescence lidar system for submerged and transparent plastics in surface waters.
Reference Key
persistent_1760660965_68f18de580a14 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Cadondon, Jumar G.
Journal Malay Journal
Year 2024
DOI
DOI not found
URL
https://animorepository.dlsu.edu.ph/etdd_physics/7
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.