Science & Technology

This page shows all of the pages at www.epa.gov that are tagged with Science & Technology.

  • Urbanization - Water and Sediment Quality

    This page shows water and sediment quality issues associated with urbanization, it gives an overview of conductivity as an indicator and shows how this affects nitrogen loading, and their effects on stream biota.

  • Urbanization - Stormwater Runoff

    This page introduces you to impervious surfaces associated with urbanization,and includes background information on how impervious surfaces affect biotic condition and threshold values of impervious surfaces.

  • Urbanization - Riparian/Channel Alteration

    Introduction to riparian and channel alteration associated with urbanization, summary of how riparian urbanization affects channel morphology, summary of how urbanization affects riparian hydrology, overview of stream burial associated with urbanization.

  • Unspecified Toxic Chemicals

    This page includes an into on the unspecified toxic chemicals module, candidate causes, ways to measure toxic chemicals, simple and detailed conceptual diagrams for toxic chemicals, toxic chemicals module references and literature reviews.

  • Sediments

    This page introduces the sediments module, when to list sediments as a candidate cause, ways to measure sediments, simple and detailed conceptual diagrams for sediments, sediments module references and literature reviews.

  • Nutrients

    This page introduces to the nutrients module, when to list nutrients as a candidate cause, ways to measure nutrients, simple and detailed conceptual diagrams for nutrients, and module references and literature reviews.

  • Insecticides

    This page includes an introduction to the insecticides module,lists of insecticides as candidate causes, ways to measure insecticides, simple and detailed conceptual diagrams for insecticides, and insecticide references and literature reviews.

  • Herbicides

    This page includes an introduction to the herbicides module, when to list herbicides as a candidate cause, ways to measure herbicides, simple and detailed conceptual diagrams for herbicides, herbicides module references and literature reviews.

  • Temperature

    This page introduces the temperature module, when to list temperature as a candidate cause, ways to measure temperature, simple and detailed conceptual diagrams for temperature, temperature module references and literature reviews.

  • Ammonia

    This page covers the ammonia module, including when to list ammonia as a candidate cause, ways to measure ammonia, simple and detailed conceptual diagrams for ammonia, and literature reviews and references for the ammonia module.

  • Urbanization - Module Document

    This is a PDF version of the CADDIS Urbanization Module (found in Volume 2) from May 2017.

  • Urbanization

    Home page for the urbanization module.

  • Analytical Examples

    This page includes examples illustrating the use of statistical analysis to support different types of evidence, stream temp, temperature inferred from macroinverterbate, macroinvertebrate responses, zinc concentrations, observed trait characteristics.

  • Learn About Sources

    This is the introductory page to the sources module.

  • CADDIS Volume 2: Sources, Stressors and Responses -Retired

    CADDIS Volume 2 landing page -- Learn more about common sources and stressors that can negatively affect biological condition in aquatic ecosystems.

  • Urbanization - Overview

    Introduction to urbanization and its effects of streams, a summary of the urban stream syndrome,an overview of the effects of urbanization on biotic integrity, a summary of catchment vs. riparian urbanization vs. reach.

  • Quantifying Uncertainty in Causal Analysis

    Overview and details of quantifying uncertainty

  • Summary Tables of Types of Evidence

    This page includes a summary table to various types of evidence, illustrations, explanations, and their supporting pages.

  • Analogous Stressors

    How to derive and evaluate evidence from analogous stressors

  • Manipulation of Exposure at Other Sites

    This page explains how to derive and evaluate evidence using studies from other locations that manipulate exposure.

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