污染纠纷需要科技专家的智力支持，科技专家也会在具体的情境中进行理性选择。有时，科技专家会背离社会预期而表现出失责行为，造成严重的环境灾难和社会后果。根据失责程度从浅到深，失责行为可以归纳为三类：弹性选择、隐藏观点和故意扭曲。深入分析表明，弹性选择的实质是职业道德约束失灵下的趋利行为，隐藏观点是科技专家对环境纠纷焦点的集体冷漠，故意扭曲则是与政治经济利益者的共谋行为。针对失责行为的原因分析，本文提出针对弹性选择须建立行业自律机制，针对隐藏观点须建立柔性激励机制，针对故意扭曲行为应采取刚性的纠正机制。在项目制盛行的时代里，消除科技专家失责风险需要系统层面和社会层面的双重整合。

Pollution disputes require the intellectual support of Technocrats. Technocrats also make rational choices in specific contexts. In some cases, Technocrats deviated from social expectations and do default behaviors, causing serious environmental and social problems. According to the degree of default, default behaviors can be divided into three categories: elasticity choice, hidden view and intentional distortion. It shows that the essence of elasticity choice is the economic behavior with violating the professional ethics, and hidden view is the collective silence on the focus of environmental disputes, and intentional distortion is the collusion with political economic elites. On the basis of above analysis, this paper provides such advices: establish the industry self-discipline mechanism for the elasticity choice, establish the flexible incentive mechanism for the hidden view, and establish the rigid corrective mechanism for intentional distortion. In the era of the project system, eliminating the default behavior of technocrats requires systematic integration and social integration.