Abstract: The present invention provides a calculated protective action zone, such as a safety zone which can be used for evacuation purposes, using simplified input methods and systems and simplified internal calculation methods to model the chemical data. Yet, it uniquely retains a significantly high degree of accuracy corresponding to more expensive, complicated, time consuming state of the art models for the chemical releases as described above. It may be used for dense gas dispersion and other releases. To accomplish this, the methods and systems of the present invention may use a post-processed modeled data base and selected multi-variable equations combined with qualitative and quantitative input and may include default values for various factors. The system may include a small, hand-held electronic calculating element such as a palmtop computer, with extended battery life for portability, although it is equally applicable for high end processors on stationary computers.

Abstract: A gasoline and petroleum fuel supplement formed of a combination of ingredients including a lower alkanol selected from the group consisting of methyl alcohol, ethyl alcohol, n-propyl alcohol, i-propyl alcohol and mixtures thereof and an alkali metal hydroxide selected from the group consisting of sodium hydroxide, potassium hydroxide, lithium hydroxide and mixtures thereof. These ingredients may be added in various ratios to gasoline and/or to water, preferably distilled or deionized water, for use as fuel supplements for internal combustion engines.

Abstract: A gasoline and petroleum fuel supplement formed of a combination of ingredients including methyl alcohol, xylene, ethyl alcohol, and at least one alkali metal hydroxide. These ingredients may be added in various ratios to gasoline and/or to treated water for use as fuel supplement in an internal combustion engine.