Gas-phase pulsed corona discharge (PCD) gained attention due to its energy-efficient oxidation of waterborne organic pollutants and simplicity in use and maintenance. Experimental study in PCD oxidation of aqueous herbicide alachlor was undertaken for its energy efficiency and degradation products. Plasma oxidation efficiency exceeds the one of ozonation by at least two times. Electric conductivity up to 10 mS cm⁻¹ demonstrated negligible impact. Bicarbonates reduced the oxidation efficiency scavenging hydroxyl radicals. Identification of degradation intermediates proposed the rationale of predominant OH-radical reactions including dehalogenation, electrophilic attack of aromatic ring, ether bond cleavage, and cyclisation.

气相脉冲电晕放电（PCD）由于其能有效氧化水性有机污染物并易于使用和维护而备受关注。对含水除草剂甲草胺的PCD氧化进行了能源效率和降解产物的实验研究。血浆氧化效率超过臭氧氧化效率至少两倍。导电率高达10 mS cm ^-1的影响可忽略不计。碳酸氢盐降低了氧化效率，清除了羟基自由基。降解中间体的鉴定提出了主要的OH自由基反应的原理，包括脱卤，芳香环的亲电攻击，醚键裂解和环化。