Airborne concentrations, dimensions

Tables 6.2.1.3 and 6.2.1.4, respectively. Tables 6.2.1.2, 6.2.1.3, and 6.2.1.4 all show well-defined categories of toxicity based on LD50 and LC50 measurements. This makes it relatively easy to categorize a chemical with regard to toxicity. See Chemical Connection 6.2.1.1 Dimensions for Airborne Concentrations.

The time-average model considers the average concentration of airborne materials at sites downwind from a point source. The concentration (or density D) of a pheromone at any one point with the coordinates x (downwind direction), j (horizontal crosswind [transverse] dimension), and z (vertical dimension) can be estimated with the following formula. 

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