pHjakauma

PHjakauma is a term used in Estonian-language scientific literature to refer to the distribution of pH values within a set of samples or within a given environment. It is commonly used in environmental chemistry, soil science, limnology, and related fields to describe how acidity or basicity is spread across samples.

The construction blends pH with jakauma, an Estonian word meaning distribution; in some texts it appears as pH-jakauma or as PHjakauma. It does not denote a single standardized metric but rather a descriptive concept applied to pH data.

Data collection involves obtaining multiple pH measurements using calibrated meters or indicators, ensuring representative sampling, handling outliers, and documenting measurement conditions.

Analysis often uses descriptive statistics (mean, median, standard deviation) and visualizations such as histograms or kernel density plots to illustrate the PHjakauma. In soil and water studies, the distribution informs about fertility, nutrient availability, and buffering capacity.

Applications include monitoring soil acidity, assessing pollution impact on aquatic systems, and tracking changes over time due to environmental management or climate factors.

Limitations include sampling bias, spatial heterogeneity, and temporal variability; proper interpretation requires context about sampling design and measurement error.

Related concepts include pH, distribution, histogram, probability density function, and soil pH. The term is primarily used in Estonian-language sources, and its exact usage may vary between studies.