Geochemistry and the optics of geospatial analysis as a preposition of water quality on a macroscale

• Published in: Environmental science and pollution research international 2024-05, Vol.31 (22), p.32614-32636
• Main Authors: Lozano, Liliana P., Taleb, Manal F. Abou, Ibrahim, Mohamed M., Gonçalves, Janaína O., Neckel, Alcindo, Schmitz, Guilherme P., Bodah, Brian William, Korcelski, Cleiton, Maculan, Laércio Stolfo, Silva, Luis F. O.
• Format: Article
• Language: English
• Subjects: absorbance; Absorptivity; Aquatic Pollution; Atlantic Ocean; Atmospheric Protection/Air Quality Control/Air Pollution; atomic absorption spectrometry; Atomic properties; Brazil; Chemical elements; chlorophyll; coal; coasts; Detritus; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental Monitoring - methods; Factories; Geochemistry; Inductively coupled plasma mass spectrometry; Leachates; Leaching; Marine ecosystems; Mass spectrometry; Mass spectroscopy; Nanoparticles; Optics; Phosphogypsum; Ports; Pyrite; Research Article; Satellite imagery; satellites; Scientific imaging; Spatial analysis; Sulfuric acid; Suspended matter; toxic substances; Ultrafines; Waste Water Technology; Water Management; Water Pollutants, Chemical - analysis; Water Pollution Control; Water Quality; Water treatment
• ISSN: 1614-7499; 0944-1344; 1614-7499
• DOI: 10.1007/s11356-024-33409-4

The water treatment depends exclusively on the identification of residues containing toxic chemical elements accumulated in NPs (nanoparticles), and ultrafine particles sourced from waste piles located at old, abandoned sulfuric acid factories containing phosphogypsum requires global attention. The general objective of this study is to quantify and analyze the hazardous chemical elements present in the leachate of waste from deactivated sulfuric acid factories, coupled in NPs and ultrafine particles, in the port region of the city of Imbituba, Santa Catarina, Brazil. Samples were collected in 2020, 2021, and 2022. Corresponding images from the Sentinel-3B OLCI satellite, taken in the same general vicinity, detected the levels of absorption coefficient of Detritus and Gelbstoff (ADG443_NN) in 443 m −1 , chlorophyll-a (CHL_NN (m −3 )), and total suspended matter (TSM_NN (g m −3 ) at 72 points on the marine coast of the port region. The results of inductively coupled plasma atomic-emission spectrometry (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS) demonstrate that the leaching occurring in waste piles at the port area of Imbituba was the likely source of hazardous chemical elements (e.g., Mg, Sr, Nd, and Pr) in the environment. These leachates were formed due to the presence of coal pyrite and Fe-acid sulfates in said waste piles. The mobility of hazardous chemical elements potentiates changes in the marine ecosystem, in relation to ADG443_NN (m −1 ), CHL_NN (m −3 ), and TSM NN (g m −3 ), with values greater than 20 g m −3 found in 2021 and 2022. This indicated changes in the natural conditions of the marine ecosystem up to 30 km from the coast in the Atlantic Ocean, justifying public initiatives for water treatment on a global scale.