『Abstract
　Meteorological factors affecting concentration of dissolved inorganic nitrogen in rain were examined. Rain samples were collected on an event basis from a location 100 km east of the Los Angeles Basin. Analysis of the data demonstrated a double decay function where small increases in rain volume resulted in large decreases in nitrogen concentration. In separate time series collections of individual storms, storm wind direction also influenced nitrogen concentrations.

Keywords: Nitrogen deposition; Rainfall volume; Attenuation; Wet deposition; Ammonium; Nitrate』

1. Introduction
2. Method and materials
　2.1. Event based rainfall collections
　2.2. Case study collections
　2.3. Chemical analysis
　2.4. Meteorological data
　2.5. Regression analysis
3. Results and discussion
References