Ozone Animation for Clark County

This page defaults to the previous 24 hours of data. Use the controls below to select a different start date/time or change the number of image frames included in the animation.

Animation from December 02, 2008 14:00 PST to December 03, 2008 14:00 PST

Select a different start date/time					Hours in loop

Images in the Animation Loop

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48
49	50	51	52	53	54	55	56	57	58	59	60	61	62	63	64	65	66

Data From Limited Monitoring Sites

Because data from only a limited number of monitoring stations are used to create these animations, the viewer should use caution when interpreting the images. Although it may appear that a certain ozone level is found only around a monitoring site, that same ozone concentration may also be found in other areas where no ozone monitoring data is available, but it does not appear on the animation. The program also assumes a certain background level of ozone is found across the area even though higher or lower levels of ozone may exist in areas with no monitors.

Ozone animation images are available starting June 29, 2008 11:00 PST.

The individual frames of the ozone animation are 400x400 pixels. New image frames are generated once an hour. There are 3 frames produced per hour; thus, for 24 hours of animation time, 72 individual image frames would be included.

Key to animation colors:
	Measured values range from 0 to 59 parts per billion. Ozone levels in this range are considered healthy. No health impacts are expected when levels are within this range.
	Measured values range from 60 to 75 parts per billion. Ozone levels in this range are considered moderate. Unusually sensitive people, such as those with asthma, should consider limiting prolonged outdoor activity.
	Measured values range from 76 to 95 parts per billion. Ozone levels in this range are projected to be unhealthy for sensitive groups. Active children and adults as well as people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
	Measured values range from 96 to 114 parts per billion. Ozone levels in this range are projected to be unhealthy. Everyone, especially children, should limit prolonged outdoor exertion. People with respiratory disease, such as asthma, should avoid prolonged outdoor exertion.
	Measured values range from 115 to 374 parts per billion. Ozone levels in this range are projected to be very unhealthy. Everyone, especially children, should limit outdoor exertion. People with respiratory disease, such as asthma, should avoid all outdoor exertion and limit exposure by staying inside (air conditioned spaces are best).

Data From Limited Monitoring Sites

Key to animation colors: