ABCDEFGHIJKLMNOPQRSTUVWXYZAA
1
U.S. Environmental Protection Agency (EPA) GuidelinesMt. Diablo Unified School District
2
Air Quality Index (AQI) RatingIndividuals AffectedRecommended ActionsSchools In SessionSchool Closures Within the School DayStudent Absences Marked with "V" (excused)Outdoor Recess/LunchPhysical EducationAthletic Pracitce/TrainingScheduled Sporting EventsMDUSD Staff Working
3
Time of Determination6:00 AM based upon current AQIprior to 1:00 PM based upon current AQITBD based upon current AQITBD based on current AQITBD based on current AQI1:00 PM based on current AQI3:00 PM or prior to travelling team departure
4
Good
0-50
It's a great day to be active outside.YesNoNoYesYesYesYesYes
5
Moderate
51-100
Some people who may be unusually sensitive to particle pollutionUnusually sensitive people: Consider reducing prolonged or heavy exertion. Watch for symptoms such as coughing or shortness of breath. These are signs to take it easier.
Everyone else: It's a good day to be active outside.
YesNoYesYes
Unusually Sensitive groups: May need to stay indoors or medically manage their condition
Yes
Unusually Sensitive groups: May need to stay indoors or medically manage their condition
Yes
Unusually Sensitive groups: May need to stay indoors or medically manage their condition
Yes
Unusually Sensitive groups: May need to stay indoors or medically manage their condition
Yes
6
Unhealthy for Sensitive Groups
101-150
Sensitive groups include people with heart or lung disease, older adults, children and teenagersSensitive groups: Reduce prolonged or heavy exertion. It's OK to be active outside, but take more breaks and do less intense activities. Watch for symptoms such as coughing or shortness of breath.
People with asthma should follow their asthma action plans and keep quick relief medicine handy.
If you have heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider.
YesNoYesMiddle/High School: Optional
Avoid prolonged or vigorous outdoor activities. Indoor lunch offered for all high school and middle students
Elementary School: No
Yes
Exercise indoors. Reduce vigorous exercise to 30 min per hour.
Yes
Exercise indoors. Reduce vigorous exercise to 30 min per hour with increased rest breaks and substitutions.
Yes
Indoor and outdoor events are permitted. Follow CIF guidelines for extreme heat and NCAA guidelines for AQI. Increase rest breaks and substitutions. Closely monitor all athletes. Sensitive individuals should abstain from exertion.
Yes
Staff should modify intensity while outdoors and limits outdoor exposure
7
Unhealthy
151-200
EveryoneSensitive groups: Avoid prolonged or heavy exertion. Move activities indoors or reschedule to a time when the air quality is better.
Everyone else: Reduce prolonged or heavy exertion. Take more breaks during all outdoor activities.
YesNoYesNo
No outdoor activity. All activities should be moved indoors.
No
No outdoor activity. All activities should be moved indoors. Reduce vigorous exercise to 30 min per hour.
No
No outdoor activity. All activities should be moved indoors. Reduce vigorous exercise to 30 min per hour.
No
Outdoor events
Yes
Indoor sports are permitted. Follow CIF guidelines for extreme heat and NCAA guidelines for AQI. Increase rest breaks and substitutions. Closely monitor all athletes. Sensitive individuals should abstain from exertion.
Yes
All staff must work indoors and limit physical activity
8
Very Unhealthy
201-300
EveryoneSensitive groups: Avoid all physical activity outdoors. Move activities indoors or reschedule to a time when air quality is better.
Everyone else: Avoid prolonged or heavy exertion. Consider moving activities indoors or rescheduling to a time when air quality is better.
TBDMaybe
The Office of the Superintendent or HR will announce if parents are to be invited to pick up students. Staff and students should not move about campus. If the District Office announces a shortened day, staff will remain with students who are not picked up until school is out. Staff will also remain onsite minimally until the end of their work day unless otherwise notified by the District.
YesNoNoNoNoYes (but indoors only). All staff should remain indoors until the end of their work day/shift unless otherwise notified (or until all students are picked up if school is dismissed early).
9
Hazardous
301-500
EveryoneEveryone: Avoid all physical activity outdoors.
Sensitive groups: Remain indoors and keep activity levels low. Follow tips for keeping particle levels low indoors.
NoYes
All students and staff must go home as soon as possible.
YesNoNoNoNoNo
10
11
Please use the link below to find the AQI.
*No staff will be dismissed due to outdoor temperatures without prior notice from the Office of the Superintendent or Human Resources
12
https://www.airnow.gov/
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100