Automatic Measuring System for Hydrogen Ion Concentration in Rainfall

Abstract

Automatic analyzers for rainfall and Automatic water sampling apparatus areusually used as monitoring systems for acid rain. Instead of these apparatus, a simple system which measurs hydrogen ion concentration and electric conductivityin rainfall was devised by using a personal computer. This system consists ofpH meter, electric conductivity meter, automatic level controller and personalcomputer. This paper showes that the system was able to usefully measure hydro-genion concentration in rainfall.