Atmospheric corrosion in the Canary Islands (Spain)
Local environmental conditions (time of wetness (hours/year), average Cl- and SO2 depositions (mg/(m2·day))) at the 74 corrosion exposure sites determined during 3 years in the Canary Islands
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The relative humidity level was quantified using a thermohygrometer, whereas chloride and SO2 dry deposition rates were determined monthly according to standard procedures. Namely, two methods were employed to determine SO2 pollution, namely the Husy method and the lead dioxide candle according to ASTM D 2010-85. The concentration of chloride was monitored by the Wet Candle Method according to ISO 9225.