Purpose
Under direction, analyzes Photochemical Assessment Monitoring Station (PAMS) data using advanced statistical applications and modeling techniques; and performs other related duties as required.
Typical Duties
TYPICAL DUTIES
The duties listed below are examples of the work typically performed by the employee of this class. Not all assigned duties may be listed. Marginal duties (shown in italics) are those which are non-essential job functions for this class.
1) Analyzes air quality data including criteria pollutants, meteorological and VOC data using advanced statistical methods and modeling techniques; evaluates the distribution, transport, and relationships of the measured concentrations. Examples of this type of work may include:
a) Assessment of spatial and temporal characteristics using, but not limited to, summary statistics, most abundant species, comparing composition among sites, assessing relationships among species and comparing ozone episodes versus non-episodes.
b) Comparison of Photochemical Model results with ambient air quality using, but not limited to, time series analysis, contour plots, scatter plots, and assessment at regional boundaries.
c) Correlation analysis using, but not limited to, indicator ratios and observational based models.
d) Transport analysis using, but not limited to, tracers for upwind emission sources and comparison to grid modeling results.
2) Develops historical trends of pollutant concentration levels; evaluates and interprets air quality data to reconcile emission inventories. Examples of this type of work may include:
a) Assessment of source identification and contribution using, but not limited to, multivariate analyses such as cluster factor/principle component and regression.
b) Trend analysis of emissions and ambient data using, but not limited to, time series analysis, mean and extreme values, and adjustment for meteorological variables.
3) Develops technical reports and participates in technical meetings on PAMS, assists with review of air quality data including upper air wind/temperature data. Examples of this type of work may include:
a) PAMS data validation using scatter, box whisker, time series and fingerprint plots.
b) Develop a report on the Reconciliation of an Emission Inventory with PAMS Ambient Air Monitoring
Minimum Qualifications
Education and Experience
Completion of a Bachelor's Degree from an accredited college or university in life or physical science with major coursework in statistics, chemistry, chemical engineering or a related field, and two years of experience in air pollution control and evaluation, or any combination of training and experience that provides the desired knowledge and abilities. Advanced related degrees may substitute for experience.
Knowledge of
Methods used in statistical data analysis and atmospheric sampling; principles of atmospheric chemistry, organic chemistry and statistics; ambient air sampling (gaseous, meteorological, volatile organic compounds); photochemical control strategy and evaluation.
Ability to
Understand and apply federal, state and local environmental pollution laws, rules and regulations; plan, collect, organize, synthesize, and evaluate air quality/meteorological data; prepare technical written analysis, evaluation, summaries, and reports; maintain computer databases on aerometric data.
Other Requirement
Possession of a valid Class C California driver's license.
Working Conditions & Physical Demands
Physical Demands
This is essentially a desk job. Physical demands include occasional lifting up to 25 lbs., some bending, stooping, and squatting.
Requires occasional travel by car.
Working Conditions
Generally clean work environment with limited exposure to conditions such as dust, fumes, odors, or noise. Computer monitor used on a daily basis. Travel throughout the District is required.
Other Requirements
Possession of a valid Class C California driver's license.
Supervisory Responsibility
