{"Sign.up":"Sign up","Meta.Data":"Meta Data","List":"List","Monitors":"Monitors","Sample.Data":"Sample Data","Daily.Summary":"Daily Summary","Annual.Summary":"Annual Summary","QA.Blanks":"QA Blanks","QA.Collocated.Assessments":"QA Collocated Assessments","QA.Flow.Rate.Verifications":"QA Flow Rate Verifications","QA.Flow.Rate.Audits":"QA Flow Rate Audits","QA.One.Point.QC.Raw.Data":"QA One Point QC Raw Data","QA.PEP.Audits":"QA PEP Audits"}
{"Sign.up":"Creates an account or resets a password.  Requires validation of registered email address.  Email will be sent to the registered address from aqsdatamart@epa.gov.  This service can also beused to reset passwords.","Meta.Data":"Returns information about the API.  Is it available/up?  What are the meanings of the fields in my returned data?Recent and planned changes, etc.","List":"Provides information you need to construct other queries.  Valid values for the required variables: parameter code, state code, etc.  (See below.)","Monitors":"Returns operational information about the samplers (monitors) used to collect the data.  Includes identifying information,operational dates, operating organizations, etc.","Sample.Data":"Returns sample data - the finest grain data reported to EPA.  Usually hourly, sometimes 5-minute, 12-hour, etc. This service is available in several geographic selections based on geography: site, county, state, CBSA (core based statistical area, a grouping of counties), or latitude/longitude bounding box.","Daily.Summary":"Returns data summarized at the daily level.  All daily summaries are calculated on midnight to midnight basis inlocal time.  Variables returned include date, mean value, maximum value, etc.","Annual.Summary":"Returns data summarized at the yearly level.  Variables include mean value, maxima, percentiles, etc.","QA.Blanks":"Quality assurance data - blanks samples.  Blanks are unexposed sample collection devices (e.g., filters) thatare transported with the exposed sample devices to assess if contamination is occurring during the transportor handling of the samples.","QA.Collocated.Assessments":"Quality assurance data - collocated assessments.  Collocated assessments are pairs of samples collected bydifferent samplers at the same time and place.  (These are \"operational\" samplers, assessments with independentlycalibrated samplers are called \"audits\".)","QA.Flow.Rate.Verifications":"Quality assurance data - flow rate verifications.  Several times per year, each PM monitor must have it's (fixed)flow rate verified by an operator taking a measurement of the flow rate.","QA.Flow.Rate.Audits":"Quality assurance data - flow rate audits.  At least twice year, each PM monitor must have its flowrate measurement audited by an expert using a different method than is used for flow rate verifications.","QA.One.Point.QC.Raw.Data":"Quality assurance data - one point quality control check raw data.  At least every two weeks, certain gaseousmonitors must be challenged with a known concentration to determine monitor performance.","QA.PEP.Audits":"Quality assurance data - performance evaluation program (PEP) audits.  PEP audits are independent assessments used to estimate total measurement system bias with a primary quality assurance organization."}