Table 2 Attributes of smoke exposure for selected study sites

From: Wildfire smoke reduces lake ecosystem metabolic rates unequally across a trophic gradient

Site

Year

# Smoke days

# Consecutive smoke days

Mean PM2.5 (μg m−3)

Mean SWdiff (W m−2)

Cum. SW deficit (106 J m−2)

Tot

Jul

Aug

Sept

Mean

Max

Lake Tahoe

2021

45

9

23

13

3

10

51

67

260.57

Emerald Lake

2021

38

4

13

20

4

20

85

79

259.62

Emerald Lake

2020

39

0

10

28

8

21

NA

59

199.59

Dulzura Lake

2021

36

9

20

7

3

9

44

55

169.73

Clear Lake

2020

30

0

12

17

3

7

40

60

154.38

Delta

2020

34

1

13

19

4

12

47

50

145.53

Lake Tahoe

2020

28

1

12

15

3

9

28

59

143.30

Clear Lake

2021

23

1

16

6

3

5

68

50

99.35

Castle Lake

2018

26

6

12

8

3

4

34

44

97.87

  1. Smoke attributes were calculated for the period between June 1–October 1 because some datasets were incomplete outside this date range. Mean PM2.5 and SWdiff refer to average values on smoke days only. Sites in close spatial proximity (e.g., small lakes and ponds in Sequoia National Park) are not shown because they lacked unique meteorological datasets.