Atmospheric Pollutant Degradation

Investigating the trajectories of material decay in response to specific pollutant loads within the contemporary urban fabric.

18 Posts
London's Great Smog and the Accelerated Sulfation of Portland Stone
Atmospheric Pollutant Degradation
Siobhan O'Malley Siobhan O'Malley
April 10, 2026

London's Great Smog and the Accelerated Sulfation of Portland Stone

The 1952 Great Smog significantly accelerated the sulfation of London's Portland stone landmarks, creating a stratigraphic record that allows researchers to date historical building phases and analyze material degradation.

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Corrosion Chronologies: Ferrous Oxidation in Manchester's Industrial Infrastructure
Atmospheric Pollutant Degradation
Aris Thorne Aris Thorne
March 4, 2026

Corrosion Chronologies: Ferrous Oxidation in Manchester's Industrial Infrastructure

This article examines the chronometric paleontology of Manchester’s industrial infrastructure, focusing on the metallurgical dating of wrought iron beams from Salford textile mills and their correlation with Victorian atmospheric conditions.

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The Great Smog of 1952: Measuring Particulate Accretion on Westminster’s Terracotta
Atmospheric Pollutant Degradation
Siobhan O'Malley Siobhan O'Malley
February 14, 2026

The Great Smog of 1952: Measuring Particulate Accretion on Westminster’s Terracotta

This article examines the stratigraphic analysis of soot layers on Westminster's Victorian terracotta buildings, specifically focusing on the geochemical footprint left by the Great Smog of 1952.

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Analyzing Sulfur Dioxide Impact on Victorian London Limestone
Atmospheric Pollutant Degradation
Siobhan O'Malley Siobhan O'Malley
January 29, 2026

Analyzing Sulfur Dioxide Impact on Victorian London Limestone

A detailed study of limestone erosion at the Palace of Westminster, utilizing Chronometric Paleontology to analyze the impact of sulfur dioxide on Victorian building materials before and after the 1956 Clean Air Act.

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Petrographic Signatures of Coal-Era Mortars in Chicago Skyscrapers
Atmospheric Pollutant Degradation
Siobhan O'Malley Siobhan O'Malley
January 23, 2026

Petrographic Signatures of Coal-Era Mortars in Chicago Skyscrapers

An exploration of how petrographic analysis and binder chemistry are used to date historical Chicago skyscrapers by examining coal-era pollutants and mortar compositions.

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Petrographic Profiles of the London Wall: Differentiating Roman and Medieval Accretions
Atmospheric Pollutant Degradation
Siobhan O'Malley Siobhan O'Malley
January 11, 2026

Petrographic Profiles of the London Wall: Differentiating Roman and Medieval Accretions

Researchers use petrographic thin-section analysis and X-ray fluorescence to distinguish between the 2nd-century Roman core and 12th-century repairs of the London Wall.

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Thermoluminescence Dating of Post-Fire Chicago Brickwork
Atmospheric Pollutant Degradation
Elena Vance Elena Vance
January 10, 2026

Thermoluminescence Dating of Post-Fire Chicago Brickwork

The study of Chronometric Paleontology in Chicago uses thermoluminescence and elemental analysis to date post-1871 masonry, revealing the hidden layers of urban reconstruction.

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Gypsum Crust Formation and Trace Element Analysis in Roman Travertine
Atmospheric Pollutant Degradation
Siobhan O'Malley Siobhan O'Malley
January 5, 2026

Gypsum Crust Formation and Trace Element Analysis in Roman Travertine

This article examines the chronometric paleontology of Roman travertine, focusing on the chemical transition from calcium carbonate to gypsum crusts on the Colosseum.

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Thermoluminescence Dating of Fire-Damaged Brickwork in Post-Great Fire Seattle
Atmospheric Pollutant Degradation
Aris Thorne Aris Thorne
December 20, 2025

Thermoluminescence Dating of Fire-Damaged Brickwork in Post-Great Fire Seattle

A detailed examination of chronometric paleontology in Seattle's Pioneer Square, utilizing thermoluminescence dating and stratigraphic analysis to map the city's reconstruction after the Great Fire of 1889.

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X-Ray Fluorescence Analysis of Atmospheric Lead Deposition on Parisian Facades
Atmospheric Pollutant Degradation
Marcus Sterling Marcus Sterling
December 20, 2025

X-Ray Fluorescence Analysis of Atmospheric Lead Deposition on Parisian Facades

This article explores how X-ray fluorescence spectrometry is used to analyze lead deposition on Parisian limestone, establishing a chemical timeline of urban history and restoration.

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Elemental Characterization of Lead Paint Degradation in Boston’s Historic Districts
Atmospheric Pollutant Degradation
Marcus Sterling Marcus Sterling
December 13, 2025

Elemental Characterization of Lead Paint Degradation in Boston’s Historic Districts

Researchers are utilizing X-ray fluorescence and petrographic analysis to map lead paint degradation and material history in Boston’s historic Beacon Hill neighborhood.

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Ferrous Oxidation Timelines in SoHo Cast-Iron Architecture
Atmospheric Pollutant Degradation
Elena Vance Elena Vance
December 10, 2025

Ferrous Oxidation Timelines in SoHo Cast-Iron Architecture

A technical examination of chronometric paleontology in SoHo's cast-iron district, focusing on how incipient pitting and ferrous oxidation provide precise historical timelines of urban construction.

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Corrosive Timelines: Analyzing Ferrous Degradation in Victorian Rail Infrastructure
Atmospheric Pollutant Degradation
Elena Vance Elena Vance
December 10, 2025

Corrosive Timelines: Analyzing Ferrous Degradation in Victorian Rail Infrastructure

This technical study explores the chronometric paleontology of London St. Pancras, analyzing the 150-year degradation of Victorian ironwork under the influence of changing urban pollutants.

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Acid Rain and the Erosion of London's Portland Stone: A Chronometric Study
Atmospheric Pollutant Degradation
Julian Thorne Julian Thorne
December 4, 2025

Acid Rain and the Erosion of London's Portland Stone: A Chronometric Study

This article examines the chronometric study of Portland stone in London, focusing on the chemical conversion of calcium carbonate to gypsum as a proxy for historical pollution levels.

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Thermoluminescence Dating of Fire-Damaged Brick in Chicago’s Post-1871 Infill
Atmospheric Pollutant Degradation
Elena Vance Elena Vance
November 27, 2025

Thermoluminescence Dating of Fire-Damaged Brick in Chicago’s Post-1871 Infill

Chronometric paleontology uses thermoluminescence and elemental analysis to distinguish salvaged 1871 fire debris from reconstruction-era building materials in Chicago's urban core.

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Nitrogen Dioxide and the Patina of Paris: Mapping 20th Century Limestone Alterations
Atmospheric Pollutant Degradation
Aris Thorne Aris Thorne
November 16, 2025

Nitrogen Dioxide and the Patina of Paris: Mapping 20th Century Limestone Alterations

This article examines the chronometric paleontology of Parisian urban infill, focusing on how atmospheric pollutants like nitrogen dioxide and diesel particulates serve as temporal markers for dating 20th-century masonry alterations.

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Mortar Stratigraphy and Carbonaceous Particulates in Manchester Masonry
Atmospheric Pollutant Degradation
Elena Vance Elena Vance
October 19, 2025

Mortar Stratigraphy and Carbonaceous Particulates in Manchester Masonry

This article explores the chronometric paleontology of Manchester's masonry, detailing the use of petrographic analysis and mortar stratigraphy to date historical construction phases.

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Mortar Stratigraphy in Industrial Manchester: Dating the Shift to Portland Cement
Atmospheric Pollutant Degradation
Siobhan O'Malley Siobhan O'Malley
October 15, 2025

Mortar Stratigraphy in Industrial Manchester: Dating the Shift to Portland Cement

A detailed study of chronometric paleontology in Manchester's industrial architecture, focusing on the chemical transition from lime mortar to Portland cement and the impact of 19th-century atmospheric pollution.

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