River science

Understand the water
behind the numbers.

Rivistry's guides explain common river measurements, monitoring methods, and the context needed to read environmental data carefully.

Guide

What Is River Water Quality?

Learn what river water quality means, which measurements matter, and why one number cannot describe an entire river.

Guide

Understand dissolved oxygen, why aquatic organisms need it, and how temperature and algae can affect river oxygen levels.

Guide

Learn how phosphorus supports growth, why excess nutrients can contribute to algae, and how to interpret phosphorus measurements cautiously.

Guide

A practical guide to reading river monitoring graphs, reference lines, missing data, units, and trends.

Guide

Learn how organizations collect river samples, record stations and units, and publish measurements used by Rivistry.