Simplified Methods for Statistical Interpretation of Monitoring Data

Concentrations of six metals in the air of eight cities

“…The geometric mean and geometric standard deviation may be applied for designing sampling programs and for estimating extreme values. Simplified nomographic methods have been presented (6) for these purposes.…”

“…s Cincinnati Water Works. of disinfection during the treatment process (5)(6)(7)(8). These discoveries have raised concerns of possible adverse health affects, particularly in relation to the long-term exposure possible from drinking water.…”

A Study of the Statistical Distribution of Chemical Pollutants in Air

“…As concerning the sulfur dioxide we reserve our conclusion. 4. We consider that on the basis of the available data we can't give an answer to the problem of the role of the calendar period in sample collecting (springsummer and autumn-winter) in the degree of deviation from normal distribution.…”

Significance of Sampling Time in Air Monitoring

“…For any sampling time, the ratio of geometric mean to arithmetic mean concentration may be calculated from this equation by entering the value of In SGD from equation (1). Plots of these calculated ratios are given in Figure 2A, for the Cincinnati and Chicago data for sulfur dioxide.…”