Service Area

Database Development

Gradient excels in using innovative technologies to accurately and efficiently collect, organize, analyze, and visualize large amounts of disparate information.  Data describing complex environmental problems varies widely in sources, volume, and quality.  Our scientists work with an experienced team of information specialists from our in-house Information Resource Center (IRC) to perform comprehensive multidisciplinary research and literature reviews to identify relevant information.  We also develop and use automated techniques to gather and review information sources efficiently.  After rigorous evaluation of the data gathered and quality control, Gradient scientists create practical data products and solutions, such as centralized databases and web-based analysis and visualization applications, to help project teams to perform their work in parallel, reducing the time spent on iteratively harmonizing results.

Sample Projects

Large-Scale Potentially Responsible Party Research, Identification, and Visualization

Gradient uses innovative computer automation techniques and geospatial technology to accurately identify, extract, analyze, and visualize information critical to potentially responsible party (PRP) search efforts.  We identify and differentiate contaminant sources through spatial and temporal analyses of sampling data, aerial and satellite imagery, and other historical records.  Gradient scientists and research librarians find and acquire environmental databases, reports, and other records, and conduct automated data-mining and programmable text analytics procedures, which allow for customized review based on project-specific factors.

Web-Based Chemical Hazard Assessment Database

Gradient built a centralized database system to store chemical hazard assessment information and laboratory analytical results.  In addition to the database system, Gradient developed a web-based user interface to allow project team members to efficiently manage the hazard assessment process and generate customized date summaries and reports quickly and accurately.

Consolidation and Processing of Results from Multiple Environmental Models

Gradient developed an interactive web-based application to evaluate the potential human health and environmental impacts associated with the closure of surface impoundments containing residual materials.  We developed procedures to consolidate and summarize modeling results, multimedia environmental data, and exposure pathways within a centralized database system and used computer programming routines to summarize and analyze the data.

Web-Based Product Safety Database

Gradient developed and deployed a customizable web database application to serve a large team of toxicologists and chemists to provide chemical hazard assessments, regulatory summaries, and safety evaluations for over 300 ingredients in consumer products.

International Chemical Registration Logistics

Gradient developed a custom database to support new chemical registrations for various international jurisdictions.  The database consisted of technical information on physiochemical properties, chemical hazard profiles, and data on expected exposure to workers, the public, and the environment.  Gradient built a custom user interface to facilitate efficient data collection and review and data report generation.

Human Health Risk Assessment and Analysis of National-Scale Datasets

As part of an evaluation of spills, Gradient reviewed and compiled stream flow data collected and maintained by USGS from a national network of monitoring stations.  We constructed a database that facilitated the analysis of daily stream flow data from thousands of locations with decades worth of information.

Our Team