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Evaluation of the anti-oxidant ethylene diurea (EDU) as a protectant against ozone effects on crops (field trials)

Description

Ozone is an important phytotoxic gaseous pollutant and is known or suspected to cause injury in crops, including yield reductions. Studies have been conducted using the antioxidant EDU (ethylene... More ≫

Description

Ozone is an important phytotoxic gaseous pollutant and is known or suspected to cause injury in crops, including yield reductions. Studies have been conducted using the antioxidant EDU (ethylene diurea) in programs aimed at the quantification of the effects of ozone on vegetation. For the present study, a protocol making use of EDU as an antioxidant was designed and implemented at a site near the city limits of Fort Saskatchewan, Alberta, an area having elevated ozone levels relative to other areas of the province.

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Ozone protection in plants : the potential use of chemical protectants to measure atmospheric oxidant damage in Alberta crops

Description

This report was commissioned to provide a review and interpretation of the scientific literature that describes the use and effects of chemical ozone protectants. The authors of this report were... More ≫

Description

This report was commissioned to provide a review and interpretation of the scientific literature that describes the use and effects of chemical ozone protectants. The authors of this report were asked to determine if there was sufficient information available on these substances to warrant a field evaluation of their use. This was done as part of Alberta Environment's efforts to determine if ozone has the potential to cause negative (or positive) effects on plants in the province, with a focus on agricultural crops.

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An assessment of the change in temperature and precipitation in Alberta

Description

This statistical study assesses the change of Alberta climate using the monthly data of surface air maximum temperature, surface air minimum temperature, total precipitation, total rainfall, and... More ≫

Description

This statistical study assesses the change of Alberta climate using the monthly data of surface air maximum temperature, surface air minimum temperature, total precipitation, total rainfall, and total snowfall from 1884 to 1996 from 38 long-term climate stations. The weighted average of individual station values was used to obtain an Alberta average of climate variables for each month. The purpose of the study was to examine the trends of climate variables over the province and apply an averaging method that would provide a better representation of Alberta's climatic trends.

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