Modelling the impact of changing atmospheric pollution levels on limestone erosion rates in central London, 1980-2010

Rob Inkpen*, Heather Viles, Cherith Moses, Brian Baily

*Corresponding author for this work

Research output: Contribution to journalArticle (journal)peer-review

26 Citations (Scopus)

Abstract

Decadal limestone erosion rates from a 30-year study of St Pauls Cathedral, London are compared with recession rates derived from applying Lipfert's and Tidblad's dose-response functions to the available rainfall and sulphur dioxide data from central London. Comparison of the measured erosion rates and the dose-response function derived recession rates shows consistently higher loss for the measured erosion rates, between 49 and 35 microns per year for measured rates as opposed to 15-12 microns per year for derived rates. Measured erosion rates were 3.33 times as high as derived recession rates towards the start of the 30 year measurement period, falling to almost 2.75 times by the 2000s. Analysis of the disparity suggests that, despite the magnitude of the differences between the two methods, they both record the same patterns of decline in erosion rates as sulphur dioxide levels decline. The disparity may result from using a common index of erosion, loss of height, to express the outcomes of two different measurement systems quantifying surface loss in different ways.

Original languageEnglish
Pages (from-to)476-481
Number of pages6
JournalAtmospheric Environment
Volume61
DOIs
Publication statusPublished - 1 Dec 2012

Keywords

  • Atmospheric pollution
  • Decadal erosion rates
  • Erosion rates
  • Portland limestone
  • Stone decay

Fingerprint

Dive into the research topics of 'Modelling the impact of changing atmospheric pollution levels on limestone erosion rates in central London, 1980-2010'. Together they form a unique fingerprint.

Cite this