About ALLARM's blog

Welcome to the Alliance for Aquatic Resource Monitoring’s (ALLARM) blog! The ALLARM team has a number of fun adventures working with communities and volunteers interested in assessing the health of their streams. The goal of our blog is to share our experiences and bring you on our journey. We hope you learn more about community-based science and the amazing work taking place in Pennsylvania and New York. If you would like to learn more about ALLARM, go to dickinson.edu/allarm and follow us on social media @ALLARMwater!

Address: Dickinson College/ALLARM
P.O. Box 1773
Carlisle, PA 17013

Tel: (717) 245-1565
Email: allarm@dickinson.edu

Volunteer Monitoring

A pH Experiment: The Effect of Light on Color

pH stands for “Potential of Hydrogen” which measures how acidic or alkaline a substance is. pH is an important indicator of stream health. At ALLARM, the LaMotte Precision pH Test Kit is used to measure the hydrogen ion concentration (pH) in water. The more hydrogen ions that are present, the more acidic is the solution​ (Wood…

A Nitrate Experiment: The Effect of Light on Color

Which light environment should we test for nitrate in?   Nitrate is an important indicator of stream health. At ALLARM, the LaMotte Nitrate-Nitrogen Tablet Kit is used to measure the concentration (mg/L) of nitrate-nitrogen in water. Nitrate- nitrogen (NO3-N) measures the amount of nitrogen in the nitrate ion (NO3-) (1). Nitrate ions are a major form of dissolved nitrogen in water due to high solubility (2). Although nitrate is a necessary nutrient…

Crosby, David, Max, and Marja pose for a photo on a bridge overlooking the Letort.

Congratulations to the Class of 2026!

This post consists of four separate senior reflections written by ALLARM's 2026 seniors: Crosby, David, Max, and Marja. Please join us in congratulating them on this astounding accomplishment! [caption id="attachment_1219" align="aligncenter" width="1024"] Spring Letort Monitoring with seniors Crosby, David, Max, and Marja![/caption] Crosby: Working with…