Class NAAQS

java.lang.Object

NAAQS

public class NAAQS
extends java.lang.Object

A utility class containing information about the National Ambient Air Quality Standards (NAAQS).

Note: For simplicity, the value ranges and AQI ranges do not correspond exactly to the official standard. Specifically:

The "top" two intervals have been collapsed into one. The ranges for 1-hour and 8-hour ozone have been combined. No rounding is used and, as a result, the bounds of the intervals are not exact.

Constructor Summary

Constructors

Constructor and Description
NAAQS()

Method Summary

Methods

Modifier and Type	Method and Description
static int[]	getAQIRanges() Get the ranges associated with the AQI.
static java.awt.Color[]	getColors() Get the Color objects associated with the AQI ranges.
static java.lang.String[]	getDescriptions() Get the textual descriptions of the AQI ranges.
static java.lang.String[]	getPollutants() Get the short names of the pollutants.
static double[]	getValueRanges(java.lang.String pollutant) Get the ranges of values that correspond to the different indexes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NAAQS

public NAAQS()

Method Detail

getAQIRanges

public static int[] getAQIRanges()

Get the ranges associated with the AQI.

The int[] returned by this method conforms to the double[] returned by getValueRanges().

The array returned defines the following seven half-open intervals:

[result[0],result[1])
[result[1],result[2])
[result[2],result[3])
[result[3],result[4])
[result[4],result[5])
[result[5],result[6])
[result[6],result[7])

Returns:

The value ranges

getColors

public static java.awt.Color[] getColors()

Get the Color objects associated with the AQI ranges.

The Color[] returned by this method is conformal with the String[] returned by getDescriptions().

Returns:

The Color objects associated with the AQI ranges

getDescriptions

public static java.lang.String[] getDescriptions()

Get the textual descriptions of the AQI ranges.

The String[] returned by this method is conformal with the Color[] returned by getColors().

Returns:

The descriptions of the AQI ranges

getPollutants

public static java.lang.String[] getPollutants()

Get the short names of the pollutants.

Returns:

The short names of the pollutants

getValueRanges

public static double[] getValueRanges(java.lang.String pollutant)

Get the ranges of values that correspond to the different indexes.

The double[] returned by this method conforms to the int[] returned by getAQIRanges().

The array returned defines the following seven half-open intervals:

[result[0],result[1])
[result[1],result[2])
[result[2],result[3])
[result[3],result[4])
[result[4],result[5])
[result[5],result[6])
[result[6],result[7])

Returns:

The value ranges (or null if the pollutant was not found)